637
Encyclopedia
Year 637 was a common year starting on Wednesday
(link will display the full calendar) of the Julian calendar
. The denomination 637 for this year has been used since the early medieval period, when the Anno Domini
calendar era
became the prevalent method in Europe for naming years.
Common year starting on Wednesday
This is the calendar for any common year starting on Wednesday, January 1 . Examples: Gregorian years 1986, 1997, 2003, 2014 and 2025or Julian year 1903 ....
(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...
. The denomination 637 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.
Europe
- Battle of Mag Rath: Dál RiataDál RiataDál Riata was a Gaelic overkingdom on the western coast of Scotland with some territory on the northeast coast of Ireland...
influence in UlsterUlsterUlster is one of the four provinces of Ireland, located in the north of the island. In ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for administrative and judicial...
is greatly reduced or ended.
Asia
- Following the victory in the Battle of al-QādisiyyahBattle of al-QadisiyyahThe Battle of al-Qādisiyyah was fought in 636; it was the decisive engagement between the Arab muslim army and the Sassanid Persian army during the first period of Muslim expansion. It resulted in the Islamic conquest of Persia, and was key to the conquest of Iraq...
, the Rashidun CaliphateRashidun CaliphateThe Rashidun Caliphate , comprising the first four caliphs in Islam's history, was founded after Muhammad's death in 632, Year 10 A.H.. At its height, the Caliphate extended from the Arabian Peninsula, to the Levant, Caucasus and North Africa in the west, to the Iranian highlands and Central Asia...
takes the Persian capital of CtesiphonCtesiphonCtesiphon, the imperial capital of the Parthian Arsacids and of the Persian Sassanids, was one of the great cities of ancient Mesopotamia.The ruins of the city are located on the east bank of the Tigris, across the river from the Hellenistic city of Seleucia...
. - Muslim forces under the Rashidun CaliphateRashidun CaliphateThe Rashidun Caliphate , comprising the first four caliphs in Islam's history, was founded after Muhammad's death in 632, Year 10 A.H.. At its height, the Caliphate extended from the Arabian Peninsula, to the Levant, Caucasus and North Africa in the west, to the Iranian highlands and Central Asia...
conquer JerusalemSiege of Jerusalem (637)The Siege of Jerusalem was a part of a military conflict which took place in the year 637 between the Byzantine Empire and the Rashidun Caliphate. It began when the Rashidun army, under the command of Abu Ubaidah, besieged Jerusalem in November 636. After six months, the Patriarch Sophronius...
, Aleppo and AntiochBattle of Iron bridgeThe Battle of Iron Bridge was fought between the Muslim Rashidun army and the Byzantine army in 637 AD. The battle was fought near a nine-arch stone bridge spanning the River Orontes, from which the battle took its name. The campaigns in Anatolia were undertaken after the decisive Rashidun...
. - Chang'anChang'anChang'an is an ancient capital of more than ten dynasties in Chinese history, today known as Xi'an. Chang'an literally means "Perpetual Peace" in Classical Chinese. During the short-lived Xin Dynasty, the city was renamed "Constant Peace" ; yet after its fall in AD 23, the old name was restored...
, capital of ChinaChinaChinese 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...
, becomes the largest city of the world, taking the lead from CtesiphonCtesiphonCtesiphon, the imperial capital of the Parthian Arsacids and of the Persian Sassanids, was one of the great cities of ancient Mesopotamia.The ruins of the city are located on the east bank of the Tigris, across the river from the Hellenistic city of Seleucia...
, capital of the Sassanid EmpireSassanid EmpireThe Sassanid Empire , known to its inhabitants as Ērānshahr and Ērān in Middle Persian and resulting in the New Persian terms Iranshahr and Iran , was the last pre-Islamic Persian Empire, ruled by the Sasanian Dynasty from 224 to 651...
. - Songtsen GampoSongtsen GampoSongtsän Gampo Songtsän Gampo Songtsän Gampo (Tibetan: སྲོང་བཙན་སྒམ་པོ་, Wylie: Srong-btsan sGam-po, 569–649?/605–649? was the founder of the Tibetan Empire (Tibetan: Bod; ), by tradition held to be the thirty-third ruler in his dynasty. In the Chinese records, his name is given as 'Sōngzàngānbù'...
builds the first palace on the site of the Potala Palace.