Napoleon Bonaparte married Josephine de Beauharnais, widow of a former French officer executed during the revolution.
The Supreme Court ruled that the Amistad slaves were free.
The first battle between two ironclad ships, the Monitor (Union) and Merrimack (Confederate) occurred, revolutionizing naval warfare.
The special session of Congress known as the "100 days" opened, launching FDR's New Deal.
U.S. Supreme Court issued N.Y. Times v. Sullivan ruling.
Dr. Antonia Novello was sworn in as both the first Hispanic and woman to be U.S. surgeon general.