September 9
9 AD: Battle of the Teutoburg Forest: Germanic tribes led by Arminius ambushed and annihilated three elite Roman legions.
337 AD: Constantius II was acclaimed Augustus alongside his brothers, ruling the eastern provinces of the Roman Empire.
1141 AD: Battle of Qatwan: The Western Liao and Karluk confederacy crushed the Seljuk Empire, securing hegemony over Central Asia.
1513 AD: Battle of Flodden: King James IV of Scotland was killed in combat, ending Scottish involvement in the War of the League of Cambrai.
1739 AD: Stono Rebellion: Enslaved Africans launched the largest slave uprising in the British mainland colonies near Charleston.
1776 AD: The Second Continental Congress officially adopted the name "United States of America," replacing "United Colonies."
1791 AD: The newly planned federal capital of the United States was officially named Washington, in honor of George Washington.
1850 AD: Compromise of 1850: California was officially admitted into the Union as the 31st US state and a free state.
1886 AD: The Berne Convention for the Protection of Literary and Artistic Works was formally signed by ten sovereign nations in Switzerland.
1892 AD: Edward Emerson Barnard discovered Amalthea, Jupiter's fifth moon, the last planetary satellite found by direct visual observation.
1895 AD: Anti-Japanese resistance fighter Wu Defu, who plotted to assassinate Governor-General Kabayama Sukenori, committed suicide in prison.
1922 AD: Workers of the Guangdong-Hankou Railway initiated a major strike, marking an early milestone in modern Chinese labor movements.
Chronos Computation Complete: Archives 9–1922 AD Developing.