Canadian-American film producer Louis B. Mayer died on this day 66 years ago, aged 73. He was the co-founder of Metro-Goldwyn-Mayer studios in 1924. Under Mayer's management, MGM became the film industry's most prestigious movie studio, accumulating the largest concentration of leading writers, directors, and stars in Hollywood. Mayer was forced to resign as MGM's vice president in 1951, when the studio's parent company, Loew's, Inc., wanted to improve declining profits. Mayer at one time was the chairman of the California Republican Party. In 1927 he was one of the founders of AMPAS, famous for its annual Academy Awards.