The last man to attack the US Capitol, prior to the events on 6 January 2021, was a British Army Major General from Northern Ireland, in 1814.
This claim is inaccurate. Since the burning of the US Capitol in August 1814, during the War of 1812, there have been four notable further attacks before this year’s incident: Erich Muenter exploded three sticks of dynamite in the US Senate reception room (1915); Puerto Rican nationalists opened fire from the US House of Representatives visitors’ gallery (1954); the Weather Underground group exploded a bomb (1971); and seven people were arrested for causing an explosion in the US Senate (1983).