TODAY IN HISTORY
August 12, 1981
IBM introduced its first personal computer, the model 5150, at a press conference in New York.
ON THIS DATE
The Indianapolis Motor Speedway, home to the Indianapolis 500, first opened.
The Soviet Union conducted a secret test of its first hydrogen bomb.
After 14 months of negotiations, the United States, Mexico and Canada announced in Washington that they had concluded the North American Free Trade Agreement. Avant-garde composer John Cage died in New York at age 79.
The Russian nuclear submarine Kursk and its 118-man crew were lost during naval exercises in the Barents Sea.