- 1931 1st theater built for rear movie projection (NYC)
- 1885 Gilbert & Sullivan’s comic opera “Mikado” premieres in London at the Savoy Theatre
- 2-23 – Mar 14 The US, UK and Australia unveil details of their AUKUS deal to create a fleet of nuclear-powered submarines to be based in the Indo Pacific region to counter Chinese military build-up [1]
Pi Day is an annual celebration of the mathematical constant π. Pi Day is observed on March 14 since 3, 1, and 4 are the first three significant digits of π. In 2009, the United States House of Representatives supported the designation of Pi Day.