Sept. 7:  Brazilian Independence Day. Officially proclaimed September 22, 1822 (now celebrated on September 7).

Sept. 9:  1817 Alexander Twilight, probably first African American to graduate from a US college, receives BA degree at Middlebury College

Sept. 12: 1958 -  US Supreme Court orders the all-white Central High School in Little Rock, Arkansas to integrate

Sept. 15: 1821 - Act of Independence of Central America: Costa Rica, El Salvador, Guatemala, Honduras & Nicaragua declare their independence from the Spanish Empire 

Sept. 16: 1810 - Mexico issues Grito de Dolores, calling for the end of Spanish rule (Mexican Independence Day) 

Sept. 18: 1810 - Chile broke from Spanish rule, declaring their independence.

Sept. 22: 1862 - US President Abraham Lincoln says he will free slaves in all states on Jan 1st.

Sept. 24: 1957 - President Eisenhower orders US troops to desegregate Little Rock schools.

Sept. 27: 1821 - Mexican revolutionary forces led by Agustín de Iturbide occupy Mexico City as Spanish withdraw, bringing an end to the Mexican War of Independence.