April 21

Tuesday 21, 1992:

U.S. death penalty: After 13 years on death row, convicted murderer Robert Alton Harris is executed in California's gas chamber.

Friday 21, 1989:

Tiananmen Square Protests of 1989: In Beijing, around 100,000 students gather in Tiananmen Square to commemorate the late Chinese reform leader Hu Yaobang.

Monday 21, 1986:

Geraldo Rivera opens Al Capone's vault on live television and finds nothing.

Thursday 21, 1960:

Founding of the Orthodox Baha'i faith in Washington, DC.

Saturday 21, 1894:

Norway formally adopts the Krag-Jørgensen rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.