400
Encyclopedia
Leap year starting on Sunday
This is the calendar for any leap year starting on Sunday, January 1 , such as 1956, 1984, 2012, 2040, or 2068.This is the only leap year with three occurrences of Friday the 13th, each three months apart in January, April, and July....
(link will display the full calendar) of the Julian calendar
Julian calendar
The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year .The Julian calendar has a regular year of 365 days divided into 12 months...
. At the time, it was known as the Year of the Consulship of Stilicho and Aurelianus (or, less frequently, year 1153 Ab urbe condita
Ab urbe condita
Ab urbe condita is Latin for "from the founding of the City ", traditionally set in 753 BC. AUC is a year-numbering system used by some ancient Roman historians to identify particular Roman years...
). The denomination 400 for this year has been used since the early medieval period, when the Anno Domini
Anno Domini
and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
calendar era
Calendar era
A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era . The instant, date, or year from which time is marked is called the epoch of the era...
became the prevalent method in Europe for naming years.
Roman Empire
- January 9 – Emperor ArcadiusArcadiusArcadius was the Byzantine Emperor from 395 to his death. He was the eldest son of Theodosius I and his first wife Aelia Flaccilla, and brother of the Western Emperor Honorius...
gives his wife Aelia EudoxiaAelia EudoxiaAelia Eudoxia was the Empress consort of the Byzantine Emperor Arcadius.-Family:She was a daughter of Flavius Bauto, a Romanised Frank who served as magister militum in the Western Roman army during the 380s. The identity of her father is mentioned by Philostorgius...
officially the title of AugustaAugusta (honorific)Augusta was the imperial honorific title of empresses. It was given to the women of the Roman and Byzantine imperial families. In the third century, Augustae could also receive the titles of Mater castrorum and Mater Patriae .The title implied the greatest prestige, with the Augustae able to...
. She is able to wear the purple paludamentumPaludamentumIn Republican and Imperial Rome, the paludamentum was a cloak or cape fastened at one shoulder, worn by military commanders and by their troops. As supreme commander of the whole Roman army, Roman emperors were often portrayed wearing it in their statues and on their coinage...
and is depicted in Roman currencyRoman currencyThe Roman currency during most of the Roman Republic and the western half of the Roman Empire consisted of coins including the aureus , the denarius , the sestertius , the dupondius , and the as...
. - A riot breaks out in ConstantinopleConstantinopleConstantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...
, the Great PalaceGreat Palace of ConstantinopleThe Great Palace of Constantinople — also known as the Sacred Palace — was the large Imperial Byzantine palace complex located in the south-eastern end of the peninsula now known as "Old Istanbul", modern Turkey...
is burned to the ground. GainasGainasGainas was an ambitious Gothic leader who served the Eastern Roman Empire as Magister Militum during the reigns of Theodosius I and Arcadius....
, a ambitious Gothic leader, attemps to evacuate his soldiers out of the city but 7,000 armed GothsGothsThe Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....
are trapped and killed by order of Arcadius. After the massacreMassacreA massacre is an event with a heavy death toll.Massacre may also refer to:-Entertainment:*Massacre , a DC Comics villain*Massacre , a 1932 drama film starring Richard Barthelmess*Massacre, a 1956 Western starring Dane Clark...
, Gainas tries to escape across the HellespontDardanellesThe Dardanelles , formerly known as the Hellespont, is a narrow strait in northwestern Turkey connecting the Aegean Sea to the Sea of Marmara. It is one of the Turkish Straits, along with its counterpart the Bosphorus. It is located at approximately...
, but his rag-tag ad hoc fleet is destroyed by FravittaFravittaFlavius Fravitta was a chieftain of the Visigoths, who entered in the Eastern Roman army, rising to its highest ranks.- Biography :Fravitta was a member of the Visigoth aristocracy...
, a Gothic chieftain in imperial service. - Winter – Gainas lead the remaining Goths back to their homeland across the DanubeDanubeThe Danube is a river in the Central Europe and the Europe's second longest river after the Volga. It is classified as an international waterway....
. They meet the HunsHunsThe Huns were a group of nomadic people who, appearing from east of the Volga River, migrated into Europe c. AD 370 and established the vast Hunnic Empire there. Since de Guignes linked them with the Xiongnu, who had been northern neighbours of China 300 years prior to the emergence of the Huns,...
and are defeated, the Hunnic chieftain UldinUldinUldin or Uldes was one of the primary chieftains of the Huns located beyond the Danube during the reigns of the Eastern Roman Emperors Arcadius and Theodosius II...
send the head of Gainas to Constantinople where Arcadius received it as a diplomaticDiplomacyDiplomacy is the art and practice of conducting negotiations between representatives of groups or states...
gift.
Europe
- The FranksFranksThe Franks were a confederation of Germanic tribes first attested in the third century AD as living north and east of the Lower Rhine River. From the third to fifth centuries some Franks raided Roman territory while other Franks joined the Roman troops in Gaul. Only the Salian Franks formed a...
establish themselves in Northern Holland. - The Paeonians (IllyricumIllyricum (Roman province)The Roman province of Illyricum or Illyris Romana or Illyris Barbara or Illyria Barbara replaced most of the region of Illyria. It stretched from the Drilon river in modern north Albania to Istria in the west and to the Sava river in the north. Salona functioned as its capital...
) lose their identity (approximate date). - The VandalsVandalsThe Vandals were an East Germanic tribe that entered the late Roman Empire during the 5th century. The Vandals under king Genseric entered Africa in 429 and by 439 established a kingdom which included the Roman Africa province, besides the islands of Sicily, Corsica, Sardinia and the Balearics....
start their westward trekTrekTrek or trekking is a long journey undertaken on foot in areas where common means of transport is generally not available. Trekking is not mountaineering; it is days of walking along with adventure.-Etymology:...
from DaciaDaciaIn ancient geography, especially in Roman sources, Dacia was the land inhabited by the Dacians or Getae as they were known by the Greeks—the branch of the Thracians north of the Haemus range...
and HungaryHungaryHungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...
.
Asia
- ChrysanthemumChrysanthemumChrysanthemums, often called mums or chrysanths, are of the genus constituting approximately 30 species of perennial flowering plants in the family Asteraceae which is native to Asia and northeastern Europe.-Etymology:...
s are introduced to JapanJapanJapan 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...
(approximate date). - RichuEmperor Richuwas the 17th 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 400–405.-Legendary narrative :...
, the eldest son of Emperor NintokuEmperor Nintokuwas 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:...
, becomes the 17th emperor of Japan.
Art
- Resurrection and "Two Marys with Angel near the Empty Tomb"Empty tombEmpty tomb most often refers to the tomb of Jesus which was found to be empty by the women who were present at Jesus’ crucifixion. They had come to his tomb to anoint his body with spices...
, panel of a diptychDiptychA diptych di "two" + ptychē "fold") is any object with two flat plates attached at a hinge. Devices of this form were quite popular in the ancient world, wax tablets being coated with wax on inner faces, for recording notes and for measuring time and direction.In Late Antiquity, ivory diptychs with...
, found in RomeRomeRome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...
, is made. It is now kept at Castello SforzescoCastello SforzescoCastello Sforzesco is a castle in Milan, Italy, that used to be the seat and residence of the Duchy of Milan and one of the biggest citadels in Europe and now houses several of the city's museums and art collections.-History:...
, MilanMilanMilan is the second-largest city in Italy and the capital city of the region of Lombardy and of the province of Milan. The city proper has a population of about 1.3 million, while its urban area, roughly coinciding with its administrative province and the bordering Province of Monza and Brianza ,...
(approximate date).
Literature
- The Vergilius VaticanusVergilius VaticanusThe Vergilius Vaticanus is a manuscript containing fragments of Virgil's Aeneid and Georgics made in Rome in about 400. It is one of the oldest surviving sources for the text of the Aeneid and is the oldest and one of only three illustrated manuscript of classical literature...
, an illuminated manuscriptIlluminated manuscriptAn illuminated manuscript is a manuscript in which the text is supplemented by the addition of decoration, such as decorated initials, borders and miniature illustrations...
, containing fragments of VirgilVirgilPublius Vergilius Maro, usually called Virgil or Vergil in English , was an ancient Roman poet of the Augustan period. He is known for three major works of Latin literature, the Eclogues , the Georgics, and the epic Aeneid...
's AeneidAeneidThe Aeneid is a Latin epic poem, written by Virgil between 29 and 19 BC, that tells the legendary story of Aeneas, a Trojan who travelled to Italy, where he became the ancestor of the Romans. It is composed of roughly 10,000 lines in dactylic hexameter...
and GeorgicsGeorgicsThe Georgics is a poem in four books, likely published in 29 BC. It is the second major work by the Latin poet Virgil, following his Eclogues and preceding the Aeneid. It is a poem that draws on many prior sources and influenced many later authors from antiquity to the present...
is made in Rome.
Medicine
- Caelius AurelianusCaelius AurelianusCaelius Aurelianus of Sicca in Numidia was a Roman physician and writer on medical topics. He is best known for his translation from Greek to Latin of a work by Soranus of Ephesus, On Acute and Chronic Diseases. He probably flourished in the 5th century, although some place him two or even three...
, Roman physicianPhysicianA physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...
, is practising his work "De morbis acutis et chronicis" (Concerning Acute and Chronic Illness), a guide to acuteAcute (medicine)In medicine, an acute disease is a disease with either or both of:# a rapid onset, as in acute infection# a short course ....
and chronicChronic (medicine)A chronic disease is a disease or other human health condition that is persistent or long-lasting in nature. The term chronic is usually applied when the course of the disease lasts for more than three months. Common chronic diseases include asthma, cancer, diabetes and HIV/AIDS.In medicine, the...
diseases.
Physics
- Hypatia, Greek philosoperPhilosophyPhilosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...
, distinguishes herself as one of the first women scientistsScienceScience is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...
, and becoming head of the Neo-PlatonistNeoplatonismNeoplatonism , is the modern term for a school of religious and mystical philosophy that took shape in the 3rd century AD, based on the teachings of Plato and earlier Platonists, with its earliest contributor believed to be Plotinus, and his teacher Ammonius Saccas...
school at AlexandriaAlexandriaAlexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...
.
Religion
- The mausoleumMausoleumA mausoleum is an external free-standing building constructed as a monument enclosing the interment space or burial chamber of a deceased person or persons. A monument without the interment is a cenotaph. A mausoleum may be considered a type of tomb or the tomb may be considered to be within the...
of GaleriusGaleriusGalerius , was Roman Emperor from 305 to 311. During his reign he campaigned, aided by Diocletian, against the Sassanid Empire, sacking their capital Ctesiphon in 299. He also campaigned across the Danube against the Carpi, defeating them in 297 and 300...
in SalonicaThessalonikiThessaloniki , historically also known as Thessalonica, Salonika or Salonica, is the second-largest city in Greece and the capital of the region of Central Macedonia as well as the capital of the Decentralized Administration of Macedonia and Thrace...
(GreeceGreeceGreece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....
) is converted into a churchChristian ChurchThe Christian Church is the assembly or association of followers of Jesus Christ. The Greek term ἐκκλησία that in its appearances in the New Testament is usually translated as "church" basically means "assembly"...
. - BishopBishopA bishop is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox Churches, in the Assyrian Church of the East, in the Independent Catholic Churches, and in the...
s from GazaGazaGaza , also referred to as Gaza City, is a Palestinian city in the Gaza Strip, with a population of about 450,000, making it the largest city in the Palestinian territories.Inhabited since at least the 15th century BC,...
(PalestinePalestinePalestine is a conventional name, among others, used to describe the geographic region between the Mediterranean Sea and the Jordan River, and various adjoining lands....
) arrive at Constantinople to ask Arcadius that he close the paganPaganismPaganism is a blanket term, typically used to refer to non-Abrahamic, indigenous polytheistic religious traditions....
temple at Marneum.
Births
- AsparAsparFlavius Ardabur Aspar was an Alan patrician and magister militum of the Eastern Roman Empire. Aspar's family exerted a great influence on the Eastern Roman Emperors for half a century, from the 420s to his death in 471, over Theodosius II, Marcian and Leo I, who, in the end, had him killed.Alans...
, AlanAlansThe Alans, or the Alani, occasionally termed Alauni or Halani, were a group of Sarmatian tribes, nomadic pastoralists of the 1st millennium AD who spoke an Eastern Iranian language which derived from Scytho-Sarmatian and which in turn evolved into modern Ossetian.-Name:The various forms of Alan —...
patrician and general (magister militumMagister militumMagister militum was a top-level military command used in the later Roman Empire, dating from the reign of Constantine. Used alone, the term referred to the senior military officer of the Empire...
) (approximate date) - HydatiusHydatiusHydatius or Idacius , bishop of Aquae Flaviae in the Roman province of Gallaecia was the author of a chronicle of his own times that provides us with our best evidence for the history of the Iberian Peninsula in the 5th century.-Life:Hydatius was born around the year 400 in the...
, bishopBishopA bishop is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox Churches, in the Assyrian Church of the East, in the Independent Catholic Churches, and in the...
of Aquae FlaviaeAquae FlaviaeAquæ Flaviæ is the ancient Roman name for the current city of Chaves, Portugal.-Pre-roman ocupation:The city was a center of pre-roman occupation, being the main town of the Turodi people.-Roman domain:...
(modern Chaves, PortugalPortugalPortugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...
) (approximate date) - SalvianSalvianSalvian, was a Christian writer of the fifth century, born probably at Cologne, some time between 400 and 405.-Personal life:Salvian was educated at the school of Treves and seems to have been brought up as a Christian...
, ChristianChristianA Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...
writer (approximate date)
Deaths
- Castor of KardenCastor of KardenSaint Castor of Karden was a priest and hermit of the 4th century who is venerated as a saint by the Catholic Church. Castor was a pupil of Maximinus of Trier around 345 AD, and was ordained as a priest by Maximinus. Like his teacher, Castor may have come from the region of Aquitaine...
, Christian priestPriestA priest is a person authorized to perform the sacred rites of a religion, especially as a mediatory agent between humans and deities. They also have the authority or power to administer religious rites; in particular, rites of sacrifice to, and propitiation of, a deity or deities...
and hermitHermitA hermit is a person who lives, to some degree, in seclusion from society.In Christianity, the term was originally applied to a Christian who lives the eremitic life out of a religious conviction, namely the Desert Theology of the Old Testament .In the... - DuanEmpress Duan (Huimin)Empress Duan , formally Empress Huide , was an empress of the Chinese/Xianbei state Later Yan...
, Chinese empress and wife of Murong BaoMurong BaoMurong Bao , courtesy name Daoyou , formally Emperor Huimin of Yan , temple name Liezong or Liezu , was an emperor of the Chinese/Xianbei state Later Yan... - GainasGainasGainas was an ambitious Gothic leader who served the Eastern Roman Empire as Magister Militum during the reigns of Theodosius I and Arcadius....
, GothicGothsThe Goths were an East Germanic tribe of Scandinavian origin whose two branches, the Visigoths and the Ostrogoths, played an important role in the fall of the Roman Empire and the emergence of Medieval Europe....
chieftain and general (magister militum) - Li LingrongEmpress Dowager Li LingrongEmpress Dowager Li Lingrong , formally Empress Dowager Xiaowuwen was an empress dowager during Jin Dynasty...
, empress and mother of Jin XiaowudiEmperor Xiaowu of JinEmperor Xiaowu of Jin , personal name Sima Yao , courtesy name Changming , was an emperor of the Eastern Jin Dynasty in China... - Lü GuangLü GuangLü Guang , courtesy name Shiming , formally Emperor Yiwu of Liang , was the founding emperor of the Chinese/Di state Later Liang...
, emperor of the DiDi (ethnic group)The Di were an ethnic group in China from the 8th century BCE to approximately the middle of the 6th century CE. Note that the character Di is used to differentiate this group from the Beidi , a generic term for "northern barbarians". They lived in areas of the present-day provinces of Gansu,...
state Later LiangLater LiangThe Later Liang was a state of the Sixteen Kingdoms during the Jin Dynasty in China. It was founded by the Lü family of the Di ethnicity.All rulers of the Later Liang proclaimed themselves "Heavenly Prince" ....
(b. 337337Year 337 was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Felicianus and Titianus...
) - Lü ShaoLü ShaoLü Shao , courtesy name Yongye , formally Prince Yin of Liang , was briefly an emperor of the Chinese/Di state Later Liang. He was a son of the founding emperor Lü Guang , but not his oldest son...
, "Heavenly Prince" (Tian WangTian WangTian Wang , translatable as either "heavenly prince" or "heavenly king," was a Chinese regal title that was most frequently used during the Sixteen Kingdoms era, among the kingdoms founded by members of the Wu Hu tribes, often used as an intermediate stage from claiming a prince/king title to an...
) of Later Liang - OribasiusOribasiusOribasius or Oreibasius was a Greek medical writer and the personal physician of the Roman emperor Julian the Apostate. He studied at Alexandria under physician Zeno of Cyprus before joining Julian's retinue. He was involved in Julian's coronation in 361, and remained with the emperor until...
, Greek medicalMedicineMedicine is the science and art of healing. It encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness....
writer and physicianPhysicianA physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...