On March 4, 1929 President Herbert Hoover was inaugurated. You can watch some of the scenes from his big day, including his swearing-in ceremony and the inaugural parade, in today’s video. Prior to the ratification of the 20th Amendment in 1933, presidents were inaugurated on March 4. This particular day was significant as the day the American government, operating under the Articles of Confederation, transferred the reins of power to the new federal government under the U.S. Constitution in 178