Event:
Antoine de la Mothe Cadillac found trading post at Ft. Pontchartrain, which later becomes the city of Detroit
More Notable Events on July 24:
1974 Supreme Court unanimously rules Nixon must turn over Watergate tapes
1952 President Truman settles 53-day steel strike
1948 Soviets blockades Berlin from west
1935 1st greeting telegram sent in Britain
1793 France passes 1st copyright law