Wikipedia:Selected anniversaries/April 15
On April 15:
- 1738 - George Frideric Handel's opera Serse was played for the first time.
- 1947 - African American Jackie Robinson broke baseball's color line.
- 1985 - Marvin Hagler defeated Thomas Hearns by knockout in three rounds, to retain the undisputed world Middleweight boxing championship, in a fight billed as The War.
- 1989 - The Hillsborough disaster, one of the biggest tragedies of European football, occurred.
- 1989 - The Tiananmen Square protests of 1989 began.