Wikipedia:Selected anniversaries/July 20
This is a list of selected July 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 might 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.
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 5–6 events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is not generally posted this year if it is also the subject of the scheduled July 20, 2017 featured article or the July 20, 2017 featured picture.
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.
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|1402 – Forces under Timur defeated the Ottomans in the Battle of Ankara and captured Sultan Bayezid I.||unreferenced section|
|1866 – Third Italian War of Independence: The Austrian Navy led by Wilhelm von Tegetthoff defeated a much larger Italian fleet at the Battle of Lissa on the Adriatic Sea near present-day Vis, Croatia.||needs more footnotes|
|1927 – Five-year-old Michael became the last King of Romania upon the death of his grandfather Ferdinand.||featured on December 30|
|1951 – Abdullah I of Jordan was assassinated while visiting Al-Aqsa Mosque in Jerusalem by a Palestinian gunman who feared he might make peace with Israel.||appears on May 25|
|1969 – The Apollo 11 lunar module landed on the Sea of Tranquillity, where Neil Armstrong and Buzz Aldrin became the first men to walk on the moon six-and-a-half hours later.||external links|
|2001 – Twenty-three-year-old Italian anti-globalist Carlo Giuliani was shot dead by a police officer while protesting during the 27th G8 summit in Genoa, Italy.||lead too short|
- 1807 – French brothers Claude and Nicéphore Niépce received a patent for their Pyréolophore, one of the world's first internal combustion engines.
- 1922 – The German protectorate of Togoland was divided into the League of Nations mandates of French Togoland and British Togoland.
- 1940 – The Arroyo Seco Parkway, one of the first freeways built in the United States, opened to traffic, connecting downtown Los Angeles with Pasadena, California.
- 1944 – Adolf Hitler survived an assassination attempt by German Resistance member Claus von Stauffenberg, who hid a bomb inside a briefcase during a conference at the Wolfsschanze military headquarters in East Prussia.
- 1982 – Members of the Provisional Irish Republican Army detonated two bombs in Hyde Park and Regent's Park in London, killing eleven people and wounding over 50 others.
- 1992 – Czechoslovak President Václav Havel resigned, saying that he would not preside over the country's breakup.
- 1997 – After being fully restored, USS Constitution, one of the United States Navy's first ships, sailed under her own power for the first time in 116 years.
- 1999 – The Chinese government began a persecution campaign against Falun Gong, arresting thousands nationwide.
- 2005 – The Civil Marriage Act received its Royal Assent, legalizing same-sex marriage in Canada.
- 1592 – During the Japanese invasion of Korea, Japanese forces led by Toyotomi Hideyoshi captured Pyongyang, although they were ultimately unable to hold it.
- 1779 – Tekle Giyorgis I began the first of his six reigns as Emperor of Ethiopia.
- 1936 – The Montreux Convention Regarding the Regime of the Straits was signed in Montreux, Switzerland, allowing Turkey to fortify the Dardanelles and the Bosphorus but guaranteeing free passage to ships of all nations in peacetime.
- 1976 – The Viking 1 lander (pictured) became the first spacecraft to successfully land on Mars and perform its mission.
- 2012 – Gunman James Eagan Holmes opened fire at a movie theater in Aurora, Colorado, US, killing 12 people and injuring 58 others.