1908

Jack Johnson became the first Black boxer to win the world heavyweight championship.

1941

During World War II, Winston Churchill became the first British prime minister to address a joint meeting of the U.S. Congress.

1966

Kwanzaa was first celebrated.

1991

The USSR was formally dissolved through a declaration by the Supreme Soviet.

2004

A 9.1-magnitude earthquake beneath the Indian Ocean triggered a tsunami with waves up to 100 feet high, killing an estimated 230,000 people.