The Sistine Chapel's ceiling is unveiled, the National Weather Service makes its first forecast, the U.S. explodes its first hydrogen bomb, and Honda opens its first U.S. factory, all on this day.
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1972: Actress and model Jenny McCarthy, who parlayed her mid-1990s success as a Playboy model and host of the MTV game show "Singled Out" into a successful movie and TV career, is born in Evergreen Park, Ill.