In the hushed atmosphere of the National Guard Armory in Washington D.C., on March 29th, 1952, President Harry S Truman stood before an audience of 5,000 eager party loyalists. The room buzzed with anticipation, each attendee having paid $100 a plate for the privilege of being present. Little did they know, the 66-year-old president was about to deliver a bombshell that would resonate through history.