Template:On this day/21 August
- 1770 – James Cook formally claims eastren Australie for Great Breetain, namin it New Sooth Wales.
- 1911 – The Mona Lisa is stolen bi Vincenzo Perugia, a Louvre employee.
- 1942 – Warld War II: The banner o Nazi Germany is plantit atap Moont Elbrus (picturt), the heichest peak o the Caucasus moontain range.
- 1991 – Coup attempt against Mikhail Gorbachev collapses.
- 2017 – A solar eclipse traverses the continental Unitit States.
Leon Trotsky (d. 1940) · Sergey Brin (b. 1973) · Usain Bolt (b. 1986)