Deaths on June 21

Harry Cranbrook Allen, English historian (b. 1917)

Harry Cranbrook Allen (23 March 1917 – 21 June 1998) was a prominent British historian of the United States.

4 May

Unabomber
A federal judge in Sacramento, California, gives "Unabomber" Theodore Kaczynski four life sentences plus 30 years after Kaczynski accepts a plea agreement sparing him from the death penalty.
6 May

Houston Astros
Kerry Wood strikes out 20 Houston Astros to tie the major league record held by Roger Clemens. He threw a one-hitter and did not walk a batter in his fifth career start.
26 May

Ellis Island
The Supreme Court of the United States rules that Ellis Island, the historic gateway for millions of immigrants, is mainly in the state of New Jersey, not New York.
4 Jun

Oklahoma City bombing
Terry Nichols is sentenced to life in prison for his role in the Oklahoma City bombing.
5 Jun

General Motors
A strike begins at the General Motors parts factory in Flint, Michigan, that quickly spreads to five other assembly plants. The strike lasts seven weeks.