The Mesoamerican Long Count Calendar, most famously used by the Maya civilisation, began.
14th May 1955: The establishment of the Warsaw Pact
14th May 2020
9th August 1974: Richard Nixon resigns as President of the USA
9th August 2020
7th August 1964: Gulf of Tonkin Resolution passed by US Congress
7th August 2020
11th November 1918: WW1 Armistice of Compiègne is signed
11th November 2018
9th November 1989: East Germany opens the Berlin Wall
9th November 2019
1st September 1939: Nazi Germany invades Poland
1st September 2018