Wikipedia:Selected anniversaries/November 20
November 20: Zumbi Day in Brazil, Revolution Day in Mexico, Teacher's Day in Vietnam.
- 284 – Diocletian became Roman Emperor, eventually establishing reforms that brought an end to the Crisis of the Third Century.
- 1700 – Great Northern War: Swedish forces led by King Charles XII (pictured) defeated the Russian army of Tsar Peter the Great in the Battle of Narva.
- 1902 – While discussing how to promote the newspaper L'Auto during a lunch meeting in Paris, sports journalists Henri Desgrange and Géo Lefèvre came up with the idea of holding a cycling race that became known as the Tour de France.
- 1910 – Francisco I. Madero promulgated the San Luis Plan, starting a revolt against President Porfirio Díaz that marked the beginning of the Mexican Revolution.
- 1945 – The Nuremberg Trials against 24 leading Nazis involved in the Holocaust and various war crimes during World War II began in Nuremberg, Germany.
- 1998 – Zarya, the first module of the International Space Station, was launched on a Proton rocket from Baikonur Cosmodrome, Kazakhstan.
More anniversaries: