During World War I, in the Argonne Forest in France, America Corporal Alvin C. York leads an attack on a German machine gun nest that kills 25 and captures 132. He is a corporal during the event, but is promoted to sergeant as a result. He also earns Medal of Honor from the U.S., the Croix de Guerre from the French Republic, and the Croce di Guerra from Italy and Montenegro. Stateside, he is celebrated as a hero, and Hollywood even makes a movie entitled Sergeant York, starring Gary Cooper.

The New York Yankees’ Don Larsen pitches a perfect game in the World Series against hated rivals the Brooklyn Dodgers. It is the only perfect game in World Series history, as well as the only no-hitter.

The Soviet space probe Luna 3 transmits the first photographs of the far side of the moon. The photos generate great interest, and scientists are surprised to see mountainous terrain, very different from the near side, and only two seas, which the Soviets name Mare Moscovrae (Sea of Moscow) and Mare Desiderii (Sea of Desire).

LSD, which was originally synthesized by a Swiss doctor and was later secretly used by the CIA on military personnel, prostitutes, the mentally ill, and members of the general public in a project code named MKULTRA, is designated a controlled substance in the United States.

A six month strike by Hollywood set decorators becomes a riot at the gates of Warner Brothers Studios when strikers and replacement workers clash. The event helps bring about the passage of the Taft-Hartley Act, which, among other things, prohibits unions from contributing to political campaigns and requires union leaders to affirm they are not supporters of the Communist Party.