This day in history:
More than 100,000 people turn out to protest the Vietnam War at the National Mall in Washington D.C, in front of the Lincoln Memorial.
Later on in the day around 50,000 of them march towards the Pentagon where they are blocked off by members of the military.
While at the Pentagon, Abbie Hoffman promises to levitate the building with the combined psychic powers of the protesters, claiming that he would thus put an end to the Vietnam War.
October 21, 1967 - 44 years ago today.