Wikipedia:Selected anniversaries/August 20
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This is a list of selected August 20 anniversaries that appears on the "On this day" section of the Main Page. To suggest a new item, in most cases you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition may be controversial, or on a day that is or soon will be on the Main Page, please post your suggestion on the talk page instead.
To report an error when this appears on the Main Page, see Main Page errors.August 20: St. Stephen's Day in Hungary
- 917 – Byzantine-Bulgarian Wars: Bulgarians led by Tsar Simeon I (seal pictured) drove the Byzantines out of Thrace with a decisive victory in the Battle of Anchialus.
- 1794 – American troops defeated the Western Confederacy, a Native American alliance, at the Battle of Fallen Timbers, the decisive battle of the Northwest Indian War.
- 1804 – The Lewis and Clark Expedition, exploring the Louisiana Purchase, suffered its only death when Sergeant Charles Floyd died, apparently from acute appendicitis.
- 1991 – Estonia regained its independence in the Singing Revolution, breaking away from the Soviet Union.

