May 21

Thursday 21, 1998:

Reproductive rights: In Miami, Florida, five abortion clinics are hit by a butyric acid attacker.

Tuesday 21, 1991:

Former Indian prime minister Rajiv Gandhi is assassinated by a female suicide bomber near Madras.

Monday 21, 1979:

White Night riots in San Francisco following the manslaughter conviction of Dan White for the assassinations of George Moscone and Harvey Milk.

Wednesday 21, 1924:

University of Chicago students Richard Loeb and Nathan Leopold, Jr. murder 14-year-old Bobby Franks in a "thrill killing."

Thursday 21, 1863:

American Civil War: Siege of Port Hudson – Union forces begin to lay siege to the Confederate-controlled Port Hudson, Louisiana.