Russell Mitchell recaps the major historical events that occurred on March 29th in this video clip from This Day In History. Julius and Ethel Rosenberg were convicted of spying for the USSR, by means of giving the Soviets American nuclear secrets. Comedian Jack Benny made his radio debut on this day along with his violin as a prop. Ending American involvement in the Vietnam War, the last US troops left Vietnam on March 29th. Also, Yasser Arafat, the Palestinian president was declared an enemy by Israel.