On This Day, Dec. 6: Altamont free concert held in California
1/4 A crowd of rock fans, estimated at 300,000 to 500,000, gathered at Altamont Speedway for a rock concert by the Rolling Stones and other musical groups on December 6, 1969. UPI File Photo Dec. 6 (UPI) — On this date in history: In 1865, the 13th Amendment to the U.S. Constitution was ratified, abolishing…