1863 - Harriet Tubman leads Union guerrillas into Maryland, freeing slaves 1942 - Red Sox star Ted Williams enlists as a US Navy aviator 1958 - Yankees pitcher Whitey Ford fans 6 in a row to tie an AL record 1979 - John Paul II becomes 1st pope to visit a Communist country (Poland) 1984 - Flight readiness firing of Discovery's main engines 1984 - Actress Jill Ireland has a radical mastectomy 1984 - "Welcome To Fun Zone" hosted by Dr Demento airs on NBC-TV 1985 - RJ Reynolds Company proposed a merger with Nabisco 1987 - Mariners draft Ken Griffey Jr. #1 2004 - Ken Jennings begins his 74-game winning streak on the syndicated television game show "Jeopardy!" More Historical Events »