The incident Wednesday in which a mob of supporters of President Donald Trump overran the U.S. Capitol in Washington, D.C., is not the first time the building has found itself under attack. Over the past 185 years, the building and its occupants have been bombed three times, seen one presidential assassination attempt, an attack with anthrax-laden mail and a gun attack by four armed men from the gallery of the House of Representatives. And one incident in which a congressman nearly beat a Senator to death.