Associated Press

On April 23, 1616 (Old Style calendar), William Shakespeare died in Stratford-upon-Avon in 1564.

In 1940, about 200 people died in the Rhythm Night Club Fire in Natchez, Mississippi.

In 1969, Sirhan Sirhan was sentenced to death for assassinating New York Sen. Robert F. Kennedy. (The sentence was later reduced to life imprisonment.)

In 1971, hundreds of Vietnam War veterans opposed to the conflict protested by tossing their medals and ribbons over a wire fence in front of the U.S. Capitol.

In 1993, labor leader Cesar Chavez died in San Luis, Arizona, at age 66.

In 2020, at a White House briefing, President Donald Trump noted that researchers were looking at the effects of disinfectants on the coronavirus and wondered aloud whether they could be injected into people.