7th April 1954: President Eisenhower first described the ‘domino theory’ of the spread of communism during a news conference

He likened the spread of communism in Southeast Asia to a row of dominoes quickly collapsing after the first one falls.

15th November 1969: 500,000 people march on Washington in the Moratorium to End the War in Vietnam

Over 500,000 protesters marched on Washington D.C. as part of the national Moratorium to End the War in Vietnam.

9th July 1971: Henry Kissinger makes a secret diplomatic trip to China

Henry Kissinger, Richard Nixon’s National Security Advisor, made a secret trip to China to meet with Premier Zhou Enlai.