1170 – Thomas Becket, Archbishop of Canterbury, is assassinated inside Canterbury Cathedral by followers of King Henry II; he subsequently becomes a saint and martyr in the Anglican Church and the Catholic Church.
1786 – French Revolution: The Assembly of Notables is convened.
1835 – The Treaty of New Echota is signed, ceding all the lands of the Cherokee east of the Mississippi River to the United States.
1845 – In accordance with International Boundary delimitation, United States annexes the Republic of Texas, following the manifest destiny doctrine. The Republic of Texas, which had been independent since the Texas Revolution of 1836, is thereupon admitted as the 28th U.S. State.
1851 – The first American YMCA opens in Boston, Massachusetts.
2003 – The last known speaker of Akkala Sami dies, rendering the language extinct.