Births on October 13

John William Dawson, Canadian geologist and academic (d. 1899)

Sir John William Dawson (1820–1899) was a Canadian geologist and university administrator.

6 Feb

American Colonization Society
The first 86 African American immigrants sponsored by the American Colonization Society depart New York to start a settlement in present-day Liberia.
3 Mar

Missouri Compromise
The U.S. Congress passes the Missouri Compromise.
6 Mar

Louisiana Purchase
The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, brings Maine into the Union as a free state, and makes the rest of the northern part of the Louisiana Purchase territory slavery-free.
24 Aug

History of Portugal
Constitutionalist insurrection at Oporto, Portugal.
15 Sep

Lisbon
Constitutionalist revolution in Lisbon, Portugal.