Kofun period
Encyclopedia
The is an era in the history of Japan
History of Japan
The history of Japan encompasses the history of the islands of Japan and the Japanese people, spanning the ancient history of the region to the modern history of Japan as a nation state. Following the last ice age, around 12,000 BC, the rich ecosystem of the Japanese Archipelago fostered human...

 from around 250 to 538. It follows the Yayoi period
Yayoi period
The is an Iron Age era in the history of Japan traditionally dated 300 BC to 300 AD. It is named after the neighbourhood of Tokyo where archaeologists first uncovered artifacts and features from that era. Distinguishing characteristics of the Yayoi period include the appearance of new...

. The word kofun
Kofun
Kofun are megalithic tombs or tumuli in Japan, constructed between the early 3rd century and early 7th century. They gave their name to the Kofun period . Many of the Kofun have a distinctive keyhole-shaped mound , unique to ancient Japan...

is Japanese for the type of burial mound
Tumulus
A tumulus is a mound of earth and stones raised over a grave or graves. Tumuli are also known as barrows, burial mounds, Hügelgrab or kurgans, and can be found throughout much of the world. A tumulus composed largely or entirely of stones is usually referred to as a cairn...

s dating from this era. The Kofun and the subsequent Asuka period
Asuka period
The , was a period in the history of Japan lasting from 538 to 710 , although its beginning could be said to overlap with the preceding Kofun period...

s are sometimes referred to collectively as the Yamato period
Yamato period
The is the period of Japanese history when the Japanese Imperial court ruled from modern-day Nara Prefecture, then known as Yamato Province.While conventionally assigned to the period 250–710 , the actual start of Yamato rule is disputed...

. The Kofun period is the oldest era of recorded history in Japan; as the chronology of its historical sources tends to be very distorted, studies of this period require deliberate criticism and the aid of archaeology.

The Kofun period is divided from the Asuka period
Asuka period
The , was a period in the history of Japan lasting from 538 to 710 , although its beginning could be said to overlap with the preceding Kofun period...

 by its cultural differences. The Kofun period is characterized by a Shinto
Shinto
or Shintoism, also kami-no-michi, is the indigenous spirituality of Japan and the Japanese people. It is a set of practices, to be carried out diligently, to establish a connection between present day Japan and its ancient past. Shinto practices were first recorded and codified in the written...

 culture which existed prior to the introduction of Buddhism
Buddhism
Buddhism is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha . The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th...

. Politically, the leader of a powerful clan won control over much of west Honshū
Honshu
is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

 and the northern half of Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

 and eventually established the Imperial House of Japan
Imperial House of Japan
The , also referred to as the Imperial Family or the Yamato Dynasty, comprises those members of the extended family of the reigning Emperor of Japan who undertake official and public duties. Under the present Constitution of Japan, the emperor is the symbol of the state and unity of the people...

. Kofun burial mounds on Tanegashima
Tanegashima
is an island lying to the south of Kyushu, in southern Japan, and is part of Kagoshima Prefecture. The island is the second largest of the Ōsumi Islands....

 and two very old Shinto shrines on Yakushima
Yakushima
, one of the Ōsumi Islands, is an island of about 500 km² and roughly 15,000 islanders to the south of Kyūshū in Kagoshima Prefecture, Japan. The Vincennes Strait separates it from Tanegashima. The highest point on the island is Miyanoura-dake at 1,935 metres...

 suggest that these islands were the southern boundaries of the Yamato state.

Kofun tombs

Kofun are defined as the burial mounds built for the people of the ruling class during the 3rd to 7th centuries in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, and the Kofun period takes its name from these distinctive earthen mounds. The mounds contained large stone burial chambers. Some are surrounded by moat
Moat
A moat is a deep, broad ditch, either dry or filled with water, that surrounds a castle, other building or town, historically to provide it with a preliminary line of defence. In some places moats evolved into more extensive water defences, including natural or artificial lakes, dams and sluices...

s.

Kofun come in many shapes, with round and square being the simplest. A distinct style is the keyhole-shaped kofun, with its square front and round back. Kofun range in size from several meters to over 400 meters in length. Clay figures called Haniwa
Haniwa
The are terracotta clay figures which were made for ritual use and buried with the dead as funerary objects during the Kofun period of the history of Japan....

 were buried under the circumference.

Development

The oldest Japanese kofun is said to be Hokenoyama Kofun located in Sakurai, Nara
Sakurai, Nara
is a city in Nara, Japan.As of 2007, the city had an estimated population of 63,321 with a density of 630.01 persons per km². The total area is 98.92 km².The city was founded on September 1, 1956....

, which dates to the late 3rd century. In the Makimuku district of Sakurai, later keyhole kofuns (Hashihaka Kofun, Shibuya Mukaiyama Kofun) were built around the early 4th century. The trend of the keyhole kofun first spread from Yamato
Yamato Province
was a province of Japan, located in Kinai, corresponding to present-day Nara Prefecture in Honshū. It was also called . At first, the name was written with one different character , and for about ten years after 737, this was revised to use more desirable characters . The final revision was made in...

 to Kawachi
Kawachi Province
was a province of Japan in the eastern part of modern Osaka Prefecture. It originally held the southwestern area that was split off into Izumi Province...

 (where gigantic kofun such as Daisenryō Kofun exist), and then throughout the country (except for Tōhoku region
Tohoku region
The is a geographical area of Japan. The region occupies the northeastern portion of Honshu, the largest island of Japan. The region consists of six prefectures : Akita, Aomori, Fukushima, Iwate, Miyagi and Yamagata....

) in the 5th century. Keyhole kofun disappeared later in the 6th century, probably because of the drastic reformation which took place in the Yamato court; Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

records the introduction of Buddhism at this time. The last two great kofun are the Imashirozuka kofun (length: 190m) of Osaka, which is believed by current scholars to be the tomb of Emperor Keitai
Emperor Keitai
, also known as Keitai-okimi, was the 26th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 507–531....

, and the Iwatoyama kofun (length: 135m) of Fukuoka which was recorded in Fudoki of Chikugo to be the tomb of Iwai, the political archrival of Keitai
Emperor Keitai
, also known as Keitai-okimi, was the 26th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 507–531....

.

Yamato court

While conventionally assigned to the period from 250 AD, the actual start of Yamato rule is disputed. The start of the court is also linked with the controversy of Yamataikoku
Yamataikoku
or is the Sino-Japanese name of an ancient country in Wa during the late Yayoi period . The Chinese history Sanguo Zhi first recorded Yemetaiguo or Yemayiguo as the domain of shaman Queen Himiko...

 and its fall. Regardless, it is generally agreed that Yamato rulers possessed keyhole kofun culture and held hegemony in Yamato up to the 4th century. The regional autonomy of local powers remained throughout the period, particularly in places such as Kibi (current Okayama prefecture
Okayama Prefecture
is a prefecture of Japan located in the Chūgoku region on Honshū island. The capital is the city of Okayama.- History :During the Meiji Restoration, the area of Okayama Prefecture was known as Bitchū Province, Bizen Province and Mimasaka Province.- Geography :...

), Izumo (current Shimane prefecture
Shimane Prefecture
is a prefecture of Japan located in the Chūgoku region on Honshū island. The capital is Matsue. It is the second least populous prefecture in Japan, after its eastern neighbor Tottori. The prefecture has an area elongated from east to west facing the Chūgoku Mountain Range on the south side and to...

), Koshi (current Fukui
Fukui Prefecture
is a prefecture of Japan located in the Chūbu region on Honshū island. The capital is the city of Fukui.- Prehistory :The Kitadani Dinosaur Quarry, on the Sugiyama River within the city limits of Katsuyama, has yielded the Fukuiraptor kitadaniensis and Fukuisaurus tetoriensis as well as an unnamed...

 and Niigata prefecture
Niigata Prefecture
is a prefecture of Japan located on the island of Honshū on the coast of the Sea of Japan. The capital is the city of Niigata. The name "Niigata" literally means "new lagoon".- History :...

), Kenu (northern Kantō), Chikushi (northern Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

), and Hi (central Kyūshū); it was only in the 6th century that the Yamato clans could be said to be dominant over the entire southern half of Japan. On the other hand, Yamato's relationships with China is likely to have begun in the late 4th century, according to the Book of Song
Book of Song
The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

.

The Yamato polity
Polity
Polity is a form of government Aristotle developed in his search for a government that could be most easily incorporated and used by the largest amount of people groups, or states...

, which emerged by the late 5th century, was distinguished by powerful clan
Clan
A clan is a group of people united by actual or perceived kinship and descent. Even if lineage details are unknown, clan members may be organized around a founding member or apical ancestor. The kinship-based bonds may be symbolical, whereby the clan shares a "stipulated" common ancestor that is a...

s (豪族: Gōzoku
Gozoku
is a Japanese term used to refer to powerful and wealthy families. In historical context, it usually refers to local samurai clans with significant local land holdings. Some were almost locally independent, and held strong ties to important commoners such as wealthy merchants...

). Each clan was headed by a patriarch
Patriarch
Originally a patriarch was a man who exercised autocratic authority as a pater familias over an extended family. The system of such rule of families by senior males is called patriarchy. This is a Greek word, a compound of πατριά , "lineage, descent", esp...

 (氏上: Uji-no-kami) who performed sacred rites to the clan's kami
Kami
is the Japanese word for the spirits, natural forces, or essence in the Shinto faith. Although the word is sometimes translated as "god" or "deity", some Shinto scholars argue that such a translation can cause a misunderstanding of the term...

to ensure the long-term welfare of the clan. Clan members were the aristocracy, and the kingly line that controlled the Yamato court was at its pinnacle. Powerful clan leaders were awarded kabane
Kabane
were hereditary titles used in ancient Japan to denote rank and political standing. There were more than thirty. Some of the more common kabane were omi, muraji, , , , , , and ....

, a title that denoted a political rank. This title was inherited, and used instead of the family name.

The Kofun period of Japanese culture is also sometimes called the Yamato period by some Western scholars, since this local chieftainship rose to become the Imperial dynasty at the end of the Kofun period. Yamato and its dynasty however were just one rival polity among others throughout the Kofun era. Japanese archaeologists emphasise instead the fact that, in the first half of the Kofun period, other regional chieftainships, such as Kibi
Kingdom of Kibi
' was a kingdom of fourth century Western Japan that acted as a cultural bridge between the Yamato state and the various kingdoms of the Korean peninsula. The Kingdom of Kibi covered most of what is today Okayama Prefecture...

 were in close contention for dominance or importance. The Tsukuriyama Kofun of Kibi is the fourth largest kofun in Japan.
The Yamato court ultimately exercised power over clans in Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

 and Honshū
Honshu
is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

, bestowing titles, some hereditary, on clan chieftains. The Yamato name became synonymous with all of Japan as the Yamato rulers suppressed the clans and acquired agricultural lands. Based on Chinese
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 models (including the adoption of the Chinese written language
Chinese written language
Written Chinese comprises Chinese characters used to represent the Chinese language, and the rules about how they are arranged and punctuated. Chinese characters do not constitute an alphabet or a compact syllabary...

), they started to develop a central administration and an imperial court attended by subordinate clan chieftains but with no permanent capital. The famous powerful clans were the Soga
Soga clan
The was one of the most powerful clans in Yamato Japan and played a major role in the spread of Buddhism. For many generations, in the 5th and 7th centuries, the Soga monopolized the position of Great Royal Chieftain and was the first of many families to dominate the Imperial House of Japan by...

, Katsuraki, Heguri, Koze clans in the Yamato
Yamato Province
was a province of Japan, located in Kinai, corresponding to present-day Nara Prefecture in Honshū. It was also called . At first, the name was written with one different character , and for about ten years after 737, this was revised to use more desirable characters . The final revision was made in...

 and Bizen Province
Bizen Province
was a province of Japan on the Inland Sea side of Honshū, in what is today the southeastern part of Okayama Prefecture. It was sometimes called , with Bitchu and Bingo Provinces. Bizen borders Mimasaka, Harima, and Bitchū Provinces....

, and the Kibi clans in the Izumo Province
Izumo Province
was an old province of Japan which today consists of the eastern part of Shimane Prefecture. It was sometimes called . The province is in the Chūgoku Region.- History :It was one of the regions of ancient Japan where major political powers arose...

. The Ōtomo
Otomo clan
The Ōtomo clan was a Japanese clan whose power stretched from the Kamakura period through the Sengoku period, spanning over 400 years. The clan's hereditary lands lay in Kyūshū....

 and Mononobe clan
Mononobe clan
The was a Japanese clan of the Kofun period, known for its military opposition to the Soga clan. The Mononobe were opposed to the spread of Buddhism, not on religious grounds, but more so as the result of feelings of conservatism and a degree of xenophobia...

s were the military leaders, and the Nakatomi
Nakatomi clan
The Nakatomi clan was an influential clan in Classical Japan. Along with the Inbe clan, the Nakatomi were one of two priestly clans which oversaw certain important national rites, and one of many to claim descent from divine clan ancestors "only a degree less sublime than the imperial ancestors"...

 and Inbe clans handled rituals. The Soga clan
Soga clan
The was one of the most powerful clans in Yamato Japan and played a major role in the spread of Buddhism. For many generations, in the 5th and 7th centuries, the Soga monopolized the position of Great Royal Chieftain and was the first of many families to dominate the Imperial House of Japan by...

 provided the highest minister in the government, while the Ōtomo and Mononobe clans provided the second highest ministers. The heads of provinces were called Kuni-no-miyatsuko. The crafts were organized into guilds.

The Yamato court had ties to the Gaya confederacy
Gaya confederacy
Gaya was a confederacy of territorial polities in the Nakdong River basin of southern Korea, growing out of the Byeonhan confederacy of the Samhan period.The traditional period used by historians for Gaya chronology is 42–532 CE...

, called Mimana in Japanese. There is archaeological evidence from the Kofun tombs, which show similarities in form, art, and clothing of the depicted nobles. Based on the Kojiki and the Nihon Shoki, Japanese kokugaku
Kokugaku
Kokugaku was a National revival, or, school of Japanese philology and philosophy originating during the Tokugawa period...

historians claimed Gaya to be a colony of the Yamato state, a theory that is now widely rejected. More likely all these states were tributaries to the Chinese
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 dynasties to some extent. However, Chinese scholars point to the Book of Song
Book of Song
The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

 of the Liu Song Dynasty
Liu Song Dynasty
The Liu Song Dynasty , also known as Song Dynasty , Former Song , or Southern Song , was first of the four Southern Dynasties in China, succeeding the Eastern Jin Dynasty and followed by the Southern Qi Dynasty....

, written by the Chinese historian Shen Yue
Shen Yue
Shen Yue , courtesy name Xiuwen , was a poet, statesman, and historian born in Huzhou, Zhejiang. He served emperors under the Liu Song Dynasty, the Southern Qi Dynasty, and the Liang Dynasty....

 (441-513), presenting the sovereign of Japan as the suzerain of the Gaya Confederacy. In recent years, kofun containing jade have been found in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, Baekje
Baekje
Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

 area and Gaya confederacy
Gaya confederacy
Gaya was a confederacy of territorial polities in the Nakdong River basin of southern Korea, growing out of the Byeonhan confederacy of the Samhan period.The traditional period used by historians for Gaya chronology is 42–532 CE...

 area.

Territorial expansion of Yamato

In addition to archaeological findings indicating a local monarchy in the Kibi Province
Kibi Province
was a ancient province or region of Japan, in the same area as Okayama Prefecture and eastern Hiroshima Prefecture. It was sometimes called .It was divided into Bizen , Bitchū , and Bingo Provinces in the late 7th century, and Mimasaka Province was separated from Bizen Province in the 8th century...

 as an important rival, the legend of the 4th century Prince Yamato Takeru
Yamato Takeru
, originally Prince Ousu was a Japanese legendary prince of the Yamato dynasty, son of Keikō of Yamato, a legendary monarch who is traditionally counted as the 12th Tennō or Emperor of Japan. The tragic tale of this impressive figure is told in the Japanese chronicles Kojiki and Nihon Shoki...

 alludes to the borders of the Yamato
Yamato Province
was a province of Japan, located in Kinai, corresponding to present-day Nara Prefecture in Honshū. It was also called . At first, the name was written with one different character , and for about ten years after 737, this was revised to use more desirable characters . The final revision was made in...

 and battlegrounds in the area. A frontier was obviously somewhere close to the later Izumo province
Izumo Province
was an old province of Japan which today consists of the eastern part of Shimane Prefecture. It was sometimes called . The province is in the Chūgoku Region.- History :It was one of the regions of ancient Japan where major political powers arose...

 (the eastern part of today's Shimane prefecture
Shimane Prefecture
is a prefecture of Japan located in the Chūgoku region on Honshū island. The capital is Matsue. It is the second least populous prefecture in Japan, after its eastern neighbor Tottori. The prefecture has an area elongated from east to west facing the Chūgoku Mountain Range on the south side and to...

). Another frontier, in Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

, was apparently somewhere north of today's Kumamoto prefecture
Kumamoto Prefecture
is a prefecture of Japan located on Kyushu Island. The capital is the city of Kumamoto.- History :Historically the area was called Higo Province; and the province was renamed Kumamoto during the Meiji Restoration. The creation of prefectures was part of the abolition of the feudal system...

. The legend specifically states that there was an eastern land in Honshū "whose people disobeyed the imperial court", against whom Yamato Takeru
Yamato Takeru
, originally Prince Ousu was a Japanese legendary prince of the Yamato dynasty, son of Keikō of Yamato, a legendary monarch who is traditionally counted as the 12th Tennō or Emperor of Japan. The tragic tale of this impressive figure is told in the Japanese chronicles Kojiki and Nihon Shoki...

 was sent to fight. That rivalling country may have been located rather close to the Yamato nucleus area itself, or relatively far away. The modern-day Kai province
Kai Province
, also known as , is an old province in Japan in the area of Yamanashi Prefecture. It lies in central Honshū, west of Tokyo, in a landlocked mountainous region that includes Mount Fuji along its border with Shizuoka Prefecture....

 is mentioned as one of the locations where prince Yamato Takeru sojourned in his said military expedition.

Northern frontier of this age was also explained in Kojiki as the legend of Shido Shogun's (四道将軍: Shoguns to four ways) expedition. Out of four shoguns, Ōbiko set northward to Koshi and his son Take Nunakawawake set to eastern states. The father moved east from northern Koshi while the son moved north on his way, and they finally met at Aizu (current western Fukushima
Fukushima Prefecture
is a prefecture of Japan located in the Tōhoku region on the island of Honshu. The capital is the city of Fukushima.-History:Until the Meiji Restoration, the area of Fukushima prefecture was known as Mutsu Province....

). Although the legend itself is not likely to be a historical fact, Aizu is rather close to southern Tōhoku, where the north end of keyhole kofun culture as of late 4th century is located.

Ōkimi

During the Kofun period, a highly aristocratic society with militaristic
Militarism
Militarism is defined as: the belief or desire of a government or people that a country should maintain a strong military capability and be prepared to use it aggressively to defend or promote national interests....

 rulers developed.

The Kofun period was a critical stage in Japan's evolution toward a more cohesive and recognized state. This society was most developed in the Kinai Region and the easternmost part of the Inland Sea. Japan's rulers of the time even petitioned the Chinese court for confirmation of royal titles.

While the rulers' titles are diplomatically King, they locally titled themselves as Ōkimi (Great King) during this period. Inscriptions in two swords, Inariyama Sword
Inariyama Sword
The iron or was excavated at the Inariyama Kofun in 1968. Inariyama Kofun is located in Saitama Prefecture. In 1978, X-ray analysis revealed a gold-inlaid inscription that comprises more than 115 Chinese characters. This sword was described as the discovery of the century for the study of...

 and Eta Funayama Sword
Eta Funayama Sword
in Japan is a 5th century ancient iron sword excavated from the Eta Funayama kofun in Kumamoto Prefecture, Japan in 1873. The inscription on the blade shows the era of Emperor Yūryaku in the 5th century...

 had records of Amenoshita Shiroshimesu(治天下; "ruling of Heaven and Earth") and Ōkimi(大王) in common, to be a ruler that the bearers of these swords were subjected to. It reveals that rulers of this age also grasped religious authorities to justify their thrones through heavenly dignities. The title of Amenoshita Shiroshimesu Okimi was used up to 7th century, until being replaced by Tenno.

Clans of the Yamato Court

Many of the clans and local chieftains that made up the Yamato polity claimed descent from the imperial family or other tribal Gods
Kami
is the Japanese word for the spirits, natural forces, or essence in the Shinto faith. Although the word is sometimes translated as "god" or "deity", some Shinto scholars argue that such a translation can cause a misunderstanding of the term...

. The archeological evidence for such clans is found in the Inariyama sword, on which the bearer recorded the names of his ancestors to claim its origin to Ōbiko (大彦) who was recorded in Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

as a son of Emperor Kōgen
Emperor Kogen
, also known as Ooyamatonekohikokunikuru no Mikoto, was the eighth emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 214 BC–158 BC.-Legendary narrative:Modern...

. On the other hand, there are also a number of clans claiming origins in China or the Korean peninsula.

In the 5th century, the Kazuraki clan (葛城氏), descending from the legendary grandson of Emperor Kōgen, was the most prominent power in the court and intermarried with the imperial family. After Kazuraki declined in the late 5th century, the Ōtomo clan
Otomo clan
The Ōtomo clan was a Japanese clan whose power stretched from the Kamakura period through the Sengoku period, spanning over 400 years. The clan's hereditary lands lay in Kyūshū....

 temporarily took its place. When Emperor Buretsu died with no apparent heir, it was Ōtomo no Kanamura who recommended Emperor Keitai
Emperor Keitai
, also known as Keitai-okimi, was the 26th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 507–531....

, a very distant imperial relative who resided in Koshi Province
Koshi Province
was an ancient province or region of Japan in the area of Echigo, Etchū and Echizen provinces. Also encompassed are Noto and Kaga provinces which were once part of Echizen. It was sometimes called ....

, as the new monarch. However, Kanamura resigned due to the failure of his diplomatic policies, and the court was eventually controlled by the Mononobe
Mononobe clan
The was a Japanese clan of the Kofun period, known for its military opposition to the Soga clan. The Mononobe were opposed to the spread of Buddhism, not on religious grounds, but more so as the result of feelings of conservatism and a degree of xenophobia...

 and Soga clan
Soga clan
The was one of the most powerful clans in Yamato Japan and played a major role in the spread of Buddhism. For many generations, in the 5th and 7th centuries, the Soga monopolized the position of Great Royal Chieftain and was the first of many families to dominate the Imperial House of Japan by...

s at the beginning of the Asuka period.

Kofun society

Toraijin

Chinese
Han Chinese
Han Chinese are an ethnic group native to China and are the largest single ethnic group in the world.Han Chinese constitute about 92% of the population of the People's Republic of China , 98% of the population of the Republic of China , 78% of the population of Singapore, and about 20% of the...

 and Korea
Korea
Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

n immigrants who were naturalized in ancient Japan were called toraijin. They introduced many aspects of Chinese culture to Japan. Valuing their knowledge and culture, the Yamato government gave preferential treatment to toraijin. The elements of Chinese culture introduced to the Yamato Imperial Court are very important. According to the book Shinsen Shōjiroku
Shinsen Shojiroku
is an imperially commissioned Japanese genealogical record. Thirty volumes in length, it was compiled under the order of Emperor Saga by Princes Manda, Fujiwara no Otsugu, Fujiwara no Sonohito et al. It was initially completed in 814, but underwent a revision to be recompleted in 815.-Contents:The...

compiled in 815, a total 154 out of 1,182 noble families in the Kinai are on Honshū Island were regarded as people with foreign genealogy. The book specifically mentions 163 were from China, 104 such families from Baekje, 41 from Goguryeo, 6 from Silla, and 3 from Gaya. They might be families that moved to Japan between the years A.D.356-645.

Chinese migration

Many important figures were also immigrants from China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. Chinese immigrants also had considerable influence according to the Shinsen Shōjiroku
Shinsen Shojiroku
is an imperially commissioned Japanese genealogical record. Thirty volumes in length, it was compiled under the order of Emperor Saga by Princes Manda, Fujiwara no Otsugu, Fujiwara no Sonohito et al. It was initially completed in 814, but underwent a revision to be recompleted in 815.-Contents:The...

, which was used as a directory of aristocrats. Yamato Imperial Court had officially edited the directory in 815, and 163 Chinese clans were registered.

According to Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

, the Hata clan
Hata tribe
The was an immigrant clan active in Japan since the Kofun period, according to the epic history Nihonshoki.Hata is the Japanese reading of the Chinese name 秦 given to the Qin Dynasty , and given to their descendants established in Japan.The Nihonshoki presents the Hata as a clan or house, and not...

, which was composed of descendants of Qin Shi Huang
Qin Shi Huang
Qin Shi Huang , personal name Ying Zheng , was king of the Chinese State of Qin from 246 BC to 221 BC during the Warring States Period. He became the first emperor of a unified China in 221 BC...

, arrived at Yamato in 403 (the fourteenth year of Ōjin) leading the people of 120 provinces. According to the Shinsen Shōjiroku, the Hata clan were dispersed in various provinces during the reign of Emperor Nintoku
Emperor Nintoku
was the 16th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 313–399.-Legendary narrative:...

 and were made to undertake sericulture and the manufacturing of silk for the court. When the finance ministry was set up in Yamato Court, Hata Ōtsuchichi (秦大津父) was in charge of accounts as a minister of it.

In 409 (the twentieth year of Ōjin), Achi-no-Omi, the ancestor of the Yamato-Aya clan, which was also composed of Chinese immigrants, arrived with people from 17 districts. According to the Shinsen Shōjiroku, Achi obtained the permission to establish the Province of Imaki. The Kawachi-no-Fumi clan, descendants of Gaozu of Han
Gaozu of Han
Emperor Gao , commonly known within China by his temple name Gaozu , personal name Liu Bang, was the first emperor of the Han Dynasty, ruling over China from 202 BC to 195 BC...

, introduced aspects of Chinese writing to the Yamato court.

The Takamuko clan is a descendant of Cao Cao
Cao Cao
Cao Cao was a warlord and the penultimate chancellor of the Eastern Han Dynasty who rose to great power during the dynasty's final years. As one of the central figures of the Three Kingdoms period, he laid the foundations for what was to become the state of Cao Wei and was posthumously titled...

. Takamuko no Kuromaro
Takamuko no Kuromaro
was a Japanese scholar and diplomat of the Asuka period. The Takamuko clan are descended from Cao Pi.Karumauro traveled to China as the with Ono no Imoko as kenzuishi representing Empress Suiko in 608...

 was a center member of Taika Reform
Taika Reform
The ' were a set of doctrines established by Emperor Kōtoku in the year 645. They were written shortly after the death of Prince Shōtoku, and the defeat of the Soga clan , uniting Japan. Crown Prince Naka no Ōe , Nakatomi no Kamatari, and Emperor Kōtoku jointly embarked on the details of the Reforms...

.

Korean migration

Among the many Korean immigrants who settled in Japan beginning in the 4th century, some came to be the progenitors of Japanese clans. According to Kojiki
Kojiki
is the oldest extant chronicle in Japan, dating from the early 8th century and composed by Ō no Yasumaro at the request of Empress Gemmei. The Kojiki is a collection of myths concerning the origin of the four home islands of Japan, and the Kami...

and Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

, the oldest record of a Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 immigrant is Amenohiboko
Amenohiboko
was a legendary prince of Silla who settled in Japan during the era of Emperor Suinin, around the 3rd or 4th century and he lived in Tajima Province. And his descendant is Tajima Clan...

, a legendary prince of Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 who settled to Japan at the era of Emperor Suinin
Emperor Suinin
; also known as Ikumeiribikoisachi no Mikoto; was the 11th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 29 BC–AD 70....

, perhaps around the 3rd or 4th century.

Korean immigrants also include the Baekje
Baekje
Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

 royal family. King Muryeong of Baekje was born in 462, and left a son in Japan who settled there. According to the historical documents in the Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

, his father was sent to Japan as a hostage.

Language

Chinese
Chinese people
The term Chinese people may refer to any of the following:*People with Han Chinese ethnicity ....

, Korean
Korean people
The Korean people are an ethnic group originating in the Korean peninsula and Manchuria. Koreans are one of the most ethnically and linguistically homogeneous groups in the world.-Names:...

 and Japanese
Japanese people
The are an ethnic group originating in the Japanese archipelago and are the predominant ethnic group of Japan. Worldwide, approximately 130 million people are of Japanese descent; of these, approximately 127 million are residents of Japan. People of Japanese ancestry who live in other countries...

 wrote accounts of history mostly in Chinese characters, making original pronunciations difficult to trace.

While writing was largely unknown to the indigenous Japanese of this period, the literary skills of foreigners seem to have become increasingly appreciated by the Japanese elite in many regions. The Inariyama sword
Sword
A sword is a bladed weapon used primarily for cutting or thrusting. The precise definition of the term varies with the historical epoch or the geographical region under consideration...

, tentatively dated 471 or 531, contains Chinese-character inscriptions in styles used in China at the time, leading to speculation that the owner, though claiming to be a Japanese aristocrat, possibly could have been an immigrant.According to the book of John Cater Covell published by the Korean company
Hollym (publishing house)
Hollym is a publishing house with offices in Seoul, Korea and New Jersey, USA. It has been publishing books on Korea and Korea-related topics since 1977. Its CEO is Ham Ki-man. The company is divided between Hollym International, which handles international distribution, and Korea-based Hollym...

, "Inariyama sword, as well as some other swords discovered in Japan, utilized the Korean 'Idu' system of writing." The swords "originated in Paekche and that the kings named in their inscriptions represent Paekche kings rather than Japanese kings." The techniques for making these swords were the same styles from Korea.

Haniwa

The cavalry
Cavalry
Cavalry or horsemen were soldiers or warriors who fought mounted on horseback. Cavalry were historically the third oldest and the most mobile of the combat arms...

 wore armour, carried sword
Sword
A sword is a bladed weapon used primarily for cutting or thrusting. The precise definition of the term varies with the historical epoch or the geographical region under consideration...

s and other weapons, and used advanced military methods like those of north-east Asia. Evidence of these advances is seen in Haniwa(埴輪), the "clay ring" placed on and around the tomb mounds of the ruling elite. The most important of these haniwa
Haniwa
The are terracotta clay figures which were made for ritual use and buried with the dead as funerary objects during the Kofun period of the history of Japan....

were found in southern Honshū
Honshu
is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

—especially the Kinai region
Kansai
The or the lies in the southern-central region of Japan's main island Honshū. The region includes the prefectures of Mie, Nara, Wakayama, Kyoto, Osaka, Hyōgo, and Shiga. Depending on who makes the distinction, Fukui, Tokushima and even Tottori Prefecture are also included...

 around Nara prefecture
Nara Prefecture
is a prefecture in the Kansai region on Honshū Island, Japan. The capital is the city of Nara.-History:The present-day Nara Prefecture was created in 1887, making it independent of Osaka Prefecture....

—and northern Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

. Haniwa grave offerings were made in numerous forms, such as horses, chickens, birds, fans, fish, houses, weapons, shields, sunshades, pillows, and male and female humans. Another funerary piece, the magatama
Magatama
Magatama , are curved beads which first appeared in Japan during the Jōmon period.They are often found inhumed in mounded tumulus graves as offerings to deities . They continued to be popular with the ruling elites throughout the Kofun Period of Japan, and are often romanticised as indicative of...

, became one of the symbols of the power of the imperial house.

Introduction of material culture to Japan

Much of the material culture
Material culture
In the social sciences, material culture is a term that refers to the relationship between artifacts and social relations. Studying a culture's relationship to materiality is a lens through which social and cultural attitudes can be discussed...

 of the Kofun period is barely distinguishable from that of the contemporaneous southern Korean peninsula, demonstrating that at this time Japan was in close political and economic contact with continental Asia (especially with the southern dynasties of China) through Korea. Indeed, bronze mirrors cast from the same mould have been found on both sides of the Tsushima Strait
Tsushima Strait
is the eastern channel of the Korea Strait, which lies between Korea and Japan, connecting the Sea of Japan and the East China Sea.The Tsushima Strait is the broader eastern channel to the east and southeast of Tsushima Island, with the Japanese islands of Honshū to the east and northeast, and...

. Irrigation
Irrigation
Irrigation may be defined as the science of artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and revegetation of disturbed soils in dry areas and during periods of inadequate rainfall...

, sericulture
Sericulture
Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.Although there are several commercial species of silkworms, Bombyx mori is the most widely used and intensively studied. According to Confucian texts, the discovery of silk production by B...

, and weaving
Weaving
Weaving is a method of fabric production in which two distinct sets of yarns or threads are interlaced at right angles to form a fabric or cloth. The other methods are knitting, lace making and felting. The longitudinal threads are called the warp and the lateral threads are the weft or filling...

 were also brought to Japan by Chinese and Korean immigrants who are mentioned in the ancient Japanese histories. For instance, the Hata clan, of Chinese origin, introduced sericulture.

Towards Asuka period

The Kofun period gave way to the Asuka period
Asuka period
The , was a period in the history of Japan lasting from 538 to 710 , although its beginning could be said to overlap with the preceding Kofun period...

 in mid-6th century AD with the introduction of Buddhism
Buddhism
Buddhism is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha . The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th...

. The religion was officially introduced the year 538, and this year is traditionally taken as the start of the new period. The Asuka period also coincided with the reunification of China under the Sui Dynasty
Sui Dynasty
The Sui Dynasty was a powerful, but short-lived Imperial Chinese dynasty. Preceded by the Southern and Northern Dynasties, it ended nearly four centuries of division between rival regimes. It was followed by the Tang Dynasty....

 later in this century. Japan became deeply influenced by Chinese culture, adding a broader cultural context to the religious distinction between the Kofun and Asuka periods.

Chinese and Korean records

  • According to the Book of Sui
    Book of Sui
    The Book of Sui was the official history of the Chinese dynasty Sui Dynasty, and it ranks among the official Twenty-Four Histories of imperial China. It was compiled by a team of historians led by the Tang Dynasty official Wei Zheng and was completed in 636.-External links:* of the Book of Sui,...

    , Silla
    Silla
    Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

     and Baekje
    Baekje
    Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

     greatly valued relations with Wa (Japan)
    Wa (Japan)
    Japanese is the oldest recorded name of Japan. Chinese, Korean, and Japanese scribes regularly wrote Wa or Yamato "Japan" with the Chinese character 倭 until the 8th century, when the Japanese found fault with it, replacing it with 和 "harmony, peace, balance".- Historical references :The earliest...

     of the Kofun period, and the Korean kingdoms made diplomatic efforts to maintain their good standing with the Japanese.
  • According to the Gwanggaeto Stele
    Gwanggaeto Stele
    The stele of King Gwanggaeto of Goguryeo was erected in 414 by King Jangsu as a memorial to his deceased father. It is one of the major primary sources extant for the history of Goguryeo, one of the Three Kingdoms of Korea, and supplies invaluable historical detail on his reign as well as insights...

    , Silla
    Silla
    Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

     and Baekje
    Baekje
    Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

     were Client state
    Client state
    Client state is one of several terms used to describe the economic, political and/or military subordination of one state to a more powerful state in international affairs...

     of Goguryeo
    Goguryeo
    Goguryeo or Koguryŏ was an ancient Korean kingdom located in present day northern and central parts of the Korean Peninsula, southern Manchuria, and southern Russian Maritime province....

    . However part of the stele can be translated in 4 different ways depending on how you fill in the missing characters and where you punctuate the sentence.

This has caused controversy between the two nations.
  • According to the Samguk Sagi
    Samguk Sagi
    Samguk Sagi is a historical record of the Three Kingdoms of Korea: Goguryeo, Baekje and Silla. The Samguk Sagi is written in Classical Chinese and its compilation was ordered by Goryeo's King Injong Samguk Sagi (History of the Three Kingdoms) is a historical record of the Three Kingdoms of...

     (Chronicles of the Three Kingdoms), Baekje
    Baekje
    Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

     and Silla
    Silla
    Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

     sent their princes as hostages to the Yamato court in exchange for military support to continue their already-begun military campaigns; King Asin of Baekje
    Asin of Baekje
    Asin of Baekje was the 17th king of Baekje, one of the Three Kingdoms of Korea.- Background :Buyeo Abang was the eldest son of Baekje's 15th ruler Chimnyu, and ascended to the throne after the death of Chimnyu’s brother, the 16th king Jinsa, of whom he is said to have killed.- Reign :During his...

     sent his son Jeonji
    Jeonji of Baekje
    Jeonji of Baekje was the 18th king of Baekje, one of the Three Kingdoms of Korea.As the eldest son, he was confirmed as successor to King Asin, in 394. His queen was Lady Palsu of the Hae clan....

     in 397 and King Silseong of Silla
    Silseong of Silla
    Silseong of Silla , whose name is also given as Silju or Silgeum, was the 18th ruler of the Korean kingdom of Silla. He was the son of the general Kim Daeseoji, who was the younger brother of King Michu...

     sent his son Misaheun in 402.
  • According to the Book of Song
    Book of Song
    The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

    , a Chinese emperor appointed five kings of Wa
    Five kings of Wa
    The five kings of Wa are kings of ancient Japan who sent envoys to China during the 5th century to strengthen the legitimacy of their claims to power by gaining the recognition of the Chinese emperor. Details about them are unknown...

     to Supervisor of All Military Affairs of the Six Countries of Wa
    Wa (Japan)
    Japanese is the oldest recorded name of Japan. Chinese, Korean, and Japanese scribes regularly wrote Wa or Yamato "Japan" with the Chinese character 倭 until the 8th century, when the Japanese found fault with it, replacing it with 和 "harmony, peace, balance".- Historical references :The earliest...

    , Silla
    Silla
    Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

    , Imna, Gara
    Gara
    Gara is a bilingual newspaper published in the city of San Sebastián in the Basque Autonomous Community...

    , Chinhan, and Mahan in 451
    451
    Year 451 was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Marcianus and Adelfius...


Japanese records

According to the Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

, Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 was conquered by the Japanese Empress-consort Jingū in the third century.

According to Nihon Shoki, The prince of Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 came to Japan to serve the Japanese Emperor, and he lived in Tajima Province
Tajima Province
was an old province of Japan in the area that is today northern Hyōgo Prefecture. It was sometimes called . Tajima bordered on Harima, Inaba, Tamba, and Tango provinces....

. He was called Amenohiboko. His descendant is Tajima mori.

According to Kojiki Nihon Shoki, In Emperor Ōjin
Emperor Ojin
, also known as Homutawake or , was the 15th emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 270 to 310....

's reign, Geunchogo of Baekje
Geunchogo of Baekje
Geunchogo of Baekje was the 13th king of Baekje, one of the Three Kingdoms of Korea. He reigned over the apex of Baekje's powers.-Background:...

 presented Stallions and Broodmares with Horse trainer
Horse trainer
In horse racing, a trainer prepares a horse for races, with responsibility for exercising it, getting it race-ready and determining which races it should enter...

s to the Japanese emperor.

Controversy

The archaeological record, and ancient Chinese sources
Twenty-Four Histories
The Twenty-Four Histories is a collection of Chinese historical books covering a period from 3000 BC to the Ming Dynasty in the 17th century. The whole set contains 3213 volumes and about 40 million words...

, indicate that the various tribes and chiefdoms of Japan did not begin to coalesce into states until 300 AD, when large tombs began to appear. Whether or not there were contacts between western Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 and Korea
Korea
Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

 or China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 is still debated. Some describe the "mysterious century" as a time of internecine warfare as various chiefdoms competed for hegemony on Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

 and Honshū
Honshu
is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

. Even more complicating is the Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

referencing the Japanese king who is Korean rulers' sovereign. Due to this conflicting information, nothing can be concluded for the book of Song or Nihon Shoki.

Whether the princes sent to Japan should be interpreted as diplomats or hostages is debated.. Due to the confusion on the exact nature of this relationship of whether the Koreans were family to the Imperial line or hostages and the fact that the Nihon Shoki is a compilation of myths make it difficult to evaluate. In Japan the hostage interpretation is dominant. Other historians like the ones who collaborated in the works for "Paekche of Korea and the origin of Yamato Japan" and Jonathan W Best who helped translate what was left of the Paekchae annals have noted that these princes set up school and took control of the Japanese Navy during the war with Koguryeo as evidence of them being diplomats with some kind of familial tie to the Japanese imperial family and not hostages. In addition, the translation of these documents are difficult because in the past the term "Wa" was derogatory meaning "midget pirate" or "dwarf pirate". It is difficult to assess what is truly being stated; this could have been a derogatory statement between 2 warring nations. Nothing definitive can be concluded.

There is no evidence of Japan ever having been sophisticated enough to control any part of Korea during the time of Jingu. However there is archaeological evidence of Koreans going to Japan during this time, According to the book "Korea and Japan in East Asian History", such as finding horse sculptures, bronze mirrors, painting and iron-ware made in China. The question that always comes up within the Korean community is, 'Why would a Japanese culture that doesn't have Korean ceramic ability or horses yet have horse sculptures in their tombs?'.

According to the book "Paekchae of Korea and the origin of Yamato Japan”, "The prince of Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 was the ancestor to the Japanese Emperor. The translation of "Nihon Shoki Vol.6" was added and Amenohiboko is described in Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

as a maternal predecessor of Empress Jingū
Jingu of Japan
, also known as , was a legendary Japanese empress. The empress or consort to Emperor Chūai, she also served as Regent from the time of her husband's death in 209 until her son Emperor Ōjin acceded to the throne in 269...

, whose controversial legend says that she defeated Silla in the 5th Century. This is highly inconsistent, as Jingū is said to have lived in the 2nd and 3rd centuries, and she is supposed to have died in 269 AD which would make her 300 to 400 years old. This conflicting information makes it difficult to understand these records. "天日槍對曰 僕新羅國主之子也 然聞日本國有聖皇 則以己國授弟知古而化歸之 Amehiboko was said to have stated 2 possible translations depending on how you puntuate the sentence and how you evaluate the syntax. 1. "I am a prince in Korea. I heard that there was saint's king in Japan. To become a vassal of the king in Japan, I transferred the country to younger brother." Again in the past the original text and not modern Japanese or Korean translations, will lack past tense/present tense and words like transferring or transferred or transfer would be impossible to interpret. This same sentence can be 2. "I am a prince in Korea. I heard that there was a saint's King in Japan to become a vassal. The king in Japan I transfer the country to my younger brother." It is impossible to tell whether the sentence is stating that a Korean prince loves his younger brother, calling him a saint and ordaining his younger brother to be his vassal (and to rule as the King of Japan), or simply the other way around.

According to the Book of Song
Book of Song
The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

, a Chinese emperor appointed five kings of Wa
Five kings of Wa
The five kings of Wa are kings of ancient Japan who sent envoys to China during the 5th century to strengthen the legitimacy of their claims to power by gaining the recognition of the Chinese emperor. Details about them are unknown...

 to the position of ruler of Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

 in 421
421
Year 421 was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Agricola and Eustathius...

, but what is confusing is that immigrants from Silla are the progenitor of Japanese ruling class according to the Nihon Shoki. In addition, the book of Song and the book of Sui can not be possible because many of the states considered to be Japan's vassal such as Chinhan and Mahan did not exist in the same time period as the vassal king of Yamato. In addition, the Book of Song
Book of Song
The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

 was incomplete with missing volumes and filled in centuries later in a biased manner for political reasons. Also, Silla did not have official contact with the Song/Sui until the 6th century making this 4th to 5th century statement impossible. "As Egami (1964) notes, it may look very strange that the names of six or seven states listed in the self-claimed titles included Chin-han and Ma-han which had preceded, respectively, the states of Silla and Paekche. Perhaps the King of Wa had included the names of six or seven south Korean states in his title merely to boast of the extent of his rule. But Wa Kings could not have included the names of nonexistent states." Other historians also dispute Japan's theory, claiming there is no evidence of Japanese rule in Gaya or any other part of Korea. Another problem with the book of Song and book of Sui is that many of the volumes of the books were missing and re-written later in a biased manner. It is difficult to make any sense of what the relationship was like in the past.

Japan of the Kofun period was very receptive to the Chinese culture and Korean culture. Chinese and Korean immigrants played an important role in introducing elements of both to early Japan.
The special burial customs of the Goguryeo culture had an important influence on other cultures in Japan. Decorated tombs and painted tumuli which date from the fifth century and later found in Japan are generally accepted as Northeast of China and Northern part of Korean peninsula exports to Japan . The Takamatsuzuka Tomb
Takamatsuzuka Tomb
The or "Tall Pine Tree Ancient Burial Mound" in Japanese is an ancient circular tomb in Asuka village, Nara prefecture, Japan.The tomb is thought to have been built at some time between the end of the 7th century and the beginning of the 8th century. It was accidentally discovered by a local...

 even has paintings of a woman dressed in distinctive clothes, similar to wall paintings from Goguryeo and Tang Dynasty
Tang Dynasty
The Tang Dynasty was an imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li family, who seized power during the decline and collapse of the Sui Empire...

 China.In addition, Chinese astrology
Chinese astrology
Chinese astrology is based on the traditional astronomy and calendars. The development of Chinese astrology is tied to that of astronomy, which came to flourish during the Han Dynasty ....

 was being introduced during this time.

According to the Book of Song
Book of Song
The Book of Song , also called "The History of the Song," is a historical text of the Liu Song Dynasty of the Southern Dynasties of China. It covers history from 420 to 479, and is one of the Twenty-Four Histories, a traditional collection of historical records. It was authored by Shen Yue from...

, of the Liu Song Dynasty
Liu Song Dynasty
The Liu Song Dynasty , also known as Song Dynasty , Former Song , or Southern Song , was first of the four Southern Dynasties in China, succeeding the Eastern Jin Dynasty and followed by the Southern Qi Dynasty....

,
the Emperor of China bestowed military sovereignty over Silla
Silla
Silla was one of the Three Kingdoms of Korea, and one of the longest sustained dynasties in...

, Imna, Gaya
Gaya confederacy
Gaya was a confederacy of territorial polities in the Nakdong River basin of southern Korea, growing out of the Byeonhan confederacy of the Samhan period.The traditional period used by historians for Gaya chronology is 42–532 CE...

, Chinhan, and Mahan
Mahan confederacy
Mahan was a loose confederacy of statelets that existed from around the 1st century BCE to 3rd century CE in the southern Korean peninsula in the Chungcheong and Jeolla provinces. Arising out of the confluence of Gojoseon migration and the Jin state federation, Mahan was one of the Samhan , along...

 on King Sai of Wa
Five kings of Wa
The five kings of Wa are kings of ancient Japan who sent envoys to China during the 5th century to strengthen the legitimacy of their claims to power by gaining the recognition of the Chinese emperor. Details about them are unknown...

. However, this theory is widely rejected even in Japan as there is no evidence of Japanese rule in Gaya or any other part of Korea. After the death of King Kō of Wa, his younger brother Bu
Five kings of Wa
The five kings of Wa are kings of ancient Japan who sent envoys to China during the 5th century to strengthen the legitimacy of their claims to power by gaining the recognition of the Chinese emperor. Details about them are unknown...

 acceeded to the throne; King Bu requested to have Baekje
Baekje
Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

 added to the list of protectorates included in the official title bestowed upon the King of Wa by mandate of the Emperor of China, but his title was only renewed as "Supervisor of All Military Affairs of the Six Countries of Wa, Silla, Imna, Gara, Chinhan, and Mahan, Great General Who Keeps Peace in the East, King of the Country of Wa." This entire statement is impossible because Chinhan and Mahan did not exist in the same time period as Silla, Baekje when the vassal Kings of Yamato were supposed to rule. As Egami wrote in 1964 "But Wa Kings could not have included the names of nonexistent states." In addition, Silla did not have official contact with the Song/Sui until the 6th century making this 4th to 5th century claim not possible. Due to the lack of evidence, and the confusion of whether the Wa were the descendants of Koreans, again no certain information is discernible.

Chinese chronicles note that horses were absent from the islands of Japan; they are first noted in the chronicles during the reign of Nintoku, most likely imported by Chinese and Korean immigrants. According to some accounts, the horse was one of the treasures presented when the king of Silla surrendered to Empress Jingū in the Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

. Other accounts contend that there is no evidence of this from Silla, and the king who supposedly surrendered dates to the 5th century, thus making Empress Jingu 200 years old. The Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

states that the father of Empress Jingu was Emperor Kaika
Emperor Kaika
; also known as Wakayamatonekohikooobi no Mikoto; is the ninth emperor of Japan, according to the traditional order of succession.No firm dates can be assigned to this emperor's life or reign, but he is conventionally considered to have reigned from 157 BC–98 BC, but he may have lived in the...

's grandchild, and her mother was from the Katuragi clan. In addition, the Nihon Shoki
Nihon Shoki
The , sometimes translated as The Chronicles of Japan, is the second oldest book of classical Japanese history. It is more elaborate and detailed than the Kojiki, the oldest, and has proven to be an important tool for historians and archaeologists as it includes the most complete extant historical...

 states that a Korean from Silla, Amenohiboko, was an ancestor of Jingu so both the Nihon Shoki and the Chinese chronicles relating to Japan are difficult to interpret. In addition, there is no evidence of Japanese war with Korea or any Japanese presence in Korea at this time and the Japanese did not have actual knowledge about horses until well after this time.

Keyhole kofun

Keyhole kofuns were also recently discovered in the Gaya confederacy
Gaya confederacy
Gaya was a confederacy of territorial polities in the Nakdong River basin of southern Korea, growing out of the Byeonhan confederacy of the Samhan period.The traditional period used by historians for Gaya chronology is 42–532 CE...

 region of the Korean peninsula. This has caused scholars to begin examining the shared relationship between the Yamato and Baekje
Baekje
Baekje or Paekche was a kingdom located in southwest Korea. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla....

 during the 3rd and the 7th centuries AD, including the method of tomb construction. While a variety of theories exist, most have come to the conclusion that there was sharing of culture and construction methods both directions. For example, earrings discovered in Silla and Kaya tombs are very similar to Japanese earrings dated to the Kofun period, "The ultimate source of such elaborate techniques as granulation is probably the Greek and Etruscan goldsmiths of western Asia and Europe, whose skills were transmitted to northern China and later to Korea. The resemblance of earrings found in Japan in the Kofun period (ca. 3rd century—538 A.D.) to those from Silla and Kaya tombs suggests that such articles are imported from Korea." Spread of Chinese civilisation
Culture of China
Chinese culture is one of the world's oldest and most complex. The area in which the culture is dominant covers a large geographical region in eastern Asia with customs and traditions varying greatly between towns, cities and provinces...

, Han styles of tomb construction were gradually adopted in all three kingdoms of Korea
Three Kingdoms of Korea
The Three Kingdoms of Korea refer to the ancient Korean kingdoms of Goguryeo, Baekje and Silla, which dominated the Korean peninsula and parts of Manchuria for much of the 1st millennium...

, mainly from the 4th century onwards. The tombs in the southern part of Korea and Japan appear to have a relationship. However, all the kofun-style tombs discovered in Korea have been dated as younger than those found in Japan.leading Japanese scholars to insist that those found in Korea were either built by Japanese immigrants or influenced by culture brought by them. but the advanced artifacts found in Japan's kofun tombs are Korean, so scholars have not been able to conclude anything about the direction of transfer.

Japan restricting access to Gosashi tomb

In 1976 Japan stopped all foreign archaeologists from studying the Gosashi tomb, which is supposedly the resting place of Emperor Jingu. In 2008, Japan allowed controlled, limited access to foreign archaeologists, but the international community still has many unanswered questions. National Geographic wrote that Japan "has kept access to the tombs restricted, prompting rumors that officials fear excavation would reveal bloodline links between the "pure" imperial family and Korea"

See also

  • Japanese clans
    Japanese clans
    This is a list of Japanese clans. The ancient clans mentioned in the Nihonshoki and Kojiki lost their political power before the Heian period. Instead of gozoku, new aristocracies, Kuge families emerged in the period...

  • Kuni no miyatsuko
    Kuni no miyatsuko
    Kuni no miyatsuko were officials in ancient Japan at the time of the Yamato court.They were in charge of provinces , although it is not always very clear what those provinces were...

  • Kumaso
    Kumaso
    The were a people of ancient Japan, believed to have lived in the south of Kyūshū until at least the Nara period. William George Aston, in his translation of the Nihongi, says Kumaso refers to two separate tribes, Kuma and So...

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