August 29, 1786: Daniel Shays led a march on the federal Springfield Armory in an unsuccessful attempt to seize its weaponry and overthrow the government. The federal government found itself unable to finance troops to put down the rebellion, and it was consequently put down by the Massachusetts state militia and a privately funded local militia. The widely held view was that the Articles of Confederation needed to be reformed as the country's governing document, and the events of the rebellion served as a catalyst for the Constitutional Convention and the creation of the new government.[207]
1933–1934: A group of businessmen were said to be conspiring to overthrow Franklin D. Roosevelt and install a fascist dictatorship. It allegedly failed when Smedley Butler refused to participate and instead testified before Congress.
October 14, 1931: Lieutenant Governor of Louisiana Paul N. Cyr had himself sworn in as Governor while Governor Huey Longwas out of state. Long had been elected to the Senate in 1930 but intended to remain Governor until the end of his term in 1932. Long sent the National Guard to the Governor's mansion and the state Capitol and returned to Baton Rouge to secure his position as governor. Long had Cyr removed as Lieutenant Governor by successfully arguing to the Louisiana Supreme Court that Cyr had vacated the position by swearing himself in as governor.[227][228][229]