The US Supreme Court struck down a Louisiana law that required schools to teach creationism.
Ruby Bridges became the first African American girl to take classes at an all-white school in Louisiana.
Florida, one of the confederate states, was readmitted to the Union.
Louisiana became the 18th state to join the United States of America.
The previously known District of Louisiana became the Louisiana Territory.
Louisiana Purchase completed.
The United States ratified the Louisiana Purchase.
President Thomas Jefferson announced the Louisiana Purchase to the public.
The USA signed The Louisiana Purchase in Paris.
The French ship named Aurore transported the first African slaves from Senegambia, West Africa, to Louisiana, US.