Lotta stuff going on today!
https://en.wikipedia.org/wiki/March_20
1861 – An earthquake destroys Mendoza, Argentina.
1915 – Albert Einstein publishes his general theory of relativity.
1987 – The Food and Drug Administration approves the anti-AIDS drug, AZT.
2003 – Invasion of Iraq: In the early hours of the morning, the United States and three other countries (the UK, Australia and Poland) begin military operations in Iraq.
.... gotta go with the Big Bopper, Albert Einstein on this chess move...
https://www.space.com/17661-theory-general-relativity.html
.... what a great, delightful read