John Lennon and Yoko Ono left the UK and headed to New York City, US.
Lennon never returned to the UK.
Source
The United States and Great Britain signed the Treaty of Paris, ending the Revolutionary war.
Dennis Villeneuve's adaptation of Frank Herbert's Dune premiered at the Venice Film Festival.
Frederick Douglass escaped slavery in the US.
MacKenzie Scott, Jeff Bezos' ex-wife, became the world's richest woman with a net worth of $68 billion.
The Viking 2 became the second spacecraft to land on Mars.
