Medical Factoid: There are 2.5 trillion (give or take) of red blood cells in your body at any moment. To maintain this number, about two and a half million new ones need to be produced every second by your bone marrow.
Pennsylvania QuickInfo Est. Pop.: 12,293,400 Capital: Harrisburg Statehood: 1787 Nickname: Keystone State Motto: Virtue, Liberty, and Independence Official Website Census Info Fun Pa Factoid In 1946 Philadelphia became home to the first computer.