Wikipedia:Selected anniversaries/September 3
September 3: Father's Day in Australia and New Zealand (2006); Independence Day in Qatar (1971); Armed Forces Day in Taiwan.
- 301 - San Marino, one of the smallest nations in the world and the world's oldest republic still in existence, was founded by Saint Marinus.
- 1260 - Mamluk forces defeated a Mongol army in Palestine in the Battle of Ain Jalut, marking the point of maximum westward expansion of the Mongol Empire.
- 1783 - The signing of the Treaty of Paris formally ended the American Revolutionary War.
- 1901 - The National Flag of Australia (pictured), a Blue Ensign defaced with the Commonwealth Star and the Southern Cross, flew for the first time in Melbourne.
- 1976 - The Viking 2 spacecraft landed on Mars and took the first close-up, color photos of the planet's surface.
Recent days: September 2 – September 1 – August 31
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