Wikipedia:Selected anniversaries/August 20
This is a list of selected August 20 anniversaries that appear in 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 might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
Images
Use only ONE image at a time
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"Anonymous" seal of Simeon I -
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Pyotr Ilyich Tchaikovsky -
1812 Overture
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Statue of St. Stephen of Hungary -
Voyager Spacecraft
Ineligible
| Blurb | Reason |
|---|---|
| Day of Restoration of Independence in Estonia (1991) | refimprove section |
| Ghost Festival (Chinese calendar, 2013); | refimprove |
| 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. | needs more footnotes |
| 1950 – Korean War: United Nations forces repelled an attempt by North Korea to capture the city of Taegu. | refimprove section |
| 1977 – NASA's Voyager 2 lifted off from Cape Canaveral in Florida, on a mission to explore the outer planets of the Solar System. | unreferenced section |
| 1989 – The final stage of the O-Bahn Busway in Adelaide, South Australia, was completed, becoming the world's longest and fastest guided busway with buses travelling a total of 12 km (7.5 mi) at maximum speeds up to 100 km/h (62 mph) (example pictured). | refimprove section |
| 1991 – At the conclusion of the Singing Revolution, Estonia declared its independence from the Soviet Union. | refimprove section |
| 1993 – Oslo Accords | Moved to September 13 |
| 1998 – The Supreme Court of Canada delivered its decision in Reference Re Secession of Quebec, ruling that Quebec cannot legally secede from Canada without the federal government's approval. | Tagged with {{refimprove}} |
Eligible
- 636 – Rashidun forces led by Khalid ibn al-Walid took control of Syria and Palestine in the Battle of Yarmouk, marking the first great wave of Muslim conquests after the death of Muhammad.
- 917 – Byzantine–Bulgarian Wars: Bulgarians led by Tsar Simeon I drove the Byzantines out of Thrace with a decisive victory in the Battle of Achelous.
- 1707 – The first Siege of Pensacola came to an end with the British abandoning their attempt to capture Pensacola in Spanish Florida.
- 1910 – Hurricane-force winds combined hundreds of small fires in the US states of Washington and Idaho into the Devil's Broom fire, which burned about three million acres (12,140 km²), the largest fire in recorded U.S. history.
- 1940 – In the midst of the Battle of Britain, British Prime Minister Winston Churchill delivered a speech thanking the Royal Air Force, declaring, "Never was so much owed by so many to so few."
- 1944 – World War II: The Gestapo transported 168 Allied airmen, who had been classified as spies and criminals so as not to warrant prisoner of war treatment, to Buchenwald concentration camp.
- 1988 – Fires in the United States' Yellowstone National Park destroyed more than 150,000 acres (610 km2), the single-worst day of the conflagration.
- 1988 – The Troubles: The Provisional Irish Republican Army bombed a bus carrying British Army soldiers in Northern Ireland, killing eight of them and wounding another 28.
- 1989 – After a collision with a dredger on the River Thames in London, the pleasure boat Marchioness sank in just thirty seconds, killing 51 people.
- 2008 – Spanair Flight 5022 crashed just after take off from Madrid's Barajas Airport, killing 154 people.
August 20: St. Stephen's Day in Hungary
- 14 – The adopted son of Roman emperor Augustus Agrippa Postumus, was executed by his guards while in exile under mysterious circumstances.
- 1710 – War of the Spanish Succession: The Spanish-Bourbon army commanded by the Marquis de Bay was soundly defeated by a multinational army led by the Austrian commander Guido Starhemberg.
- 1882 – The 1812 Overture by Russian composer Pyotr Ilyich Tchaikovsky was first performed at the Cathedral of Christ the Saviour in Moscow.
- 1962 – NS Savannah (pictured), the first nuclear-powered cargo-passenger ship, made her maiden voyage.
- 1998 – The Al-Shifa pharmaceutical factory in Sudan was destroyed by a missile attack launched by the United States in retaliation for the August 7 US embassy bombings.