1921: Political adviser and film executive Jack Valenti, a longtime president of the Motion Picture Association of America and the creator of the MPAA film rating system, is born in Houston, Texas. Seen here in 1991, Valenti became president of the MPAA in 1966 and retired in 2004. He also served as media liaison during the Nov. 22, 1963, visit of President John F. Kennedy and Vice President Lyndon B. Johnson to Dallas, Texas, and was in the presidential motorcade when Kennedy was assassinated. After Kennedy died, Valenti flew to Washington on Air Force One with Johnson and became a special assistant in his White House. He died from stroke complications at the age of 85 on April 26, 2007.