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"Anonymous" seal of Simeon I
Statue of St. Stephen of Hungary
( Ghost Festival Chinese calendar, 2013); refimprove
14 – The adopted son of Roman emperor Augustus , was executed by his guards while in exile under mysterious circumstances. Agrippa Postumus unreferenced section
1794 – American troops defeated the Western Confederacy, a Native American alliance, at the , the decisive battle of the Battle of Fallen Timbers Northwest Indian War. needs more footnotes
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 refimprove section
1950 – Korean War: United Nations forces an attempt by North Korea to capture the city of repelled Taegu. refimprove section
1977 – NASA's lifted off from Voyager 2 Cape Canaveral in Florida, on a mission to explore the outer planets of the Solar System. unreferenced section
1989 – After a collision with a dredger on the River Thames in London, the pleasure boat Marchioness , killing 51 people. sank in just thirty seconds refimprove section
1993 – Oslo Accords Moved to
1998 – The Supreme Court of Canada delivered its decision in , ruling that Reference re Secession of Quebec Quebec cannot legally secede from Canada without the federal government's approval. refimprove
2008 – crashed just after take off from Madrid's Spanair Flight 5022 Barajas Airport, killing 154 people. citation needed tags
636 – Rashidun forces led by Khalid ibn al-Walid took control of Syria and Palestine in the , marking the first great wave of Battle of Yarmouk Muslim conquests after the death of Muhammad.
1710 – War of the Spanish Succession: The Spanish- Bourbon army commanded by the Marquis de Bay by a multinational army led by the Austrian commander was soundly defeated Guido Starhemberg.
1909 – was photographed for the first time at the Pluto Yerkes Observatory in Williams Bay, Wisconsin, U.S., 15 years before it was officially discovered by Clyde Tombaugh.
1910 – Hurricane-force winds combined hundreds of small fires in the U.S. states of Washington and Idaho into the , which burned about three million acres (12,140 km²), the largest fire in recorded U.S. history. Devil's Broom fire
1944 – World War II: The Gestapo transported , who had been classified as spies and criminals so as not to warrant 168 Allied airmen prisoner of war treatment, to Buchenwald concentration camp.
1962 – , the first NS Savannah nuclear-powered cargo-passenger ship, made her maiden voyage.
1988 – The Troubles: The Provisional Irish Republican Army carrying bombed a bus British Army soldiers in Northern Ireland, killing eight of them and wounding another 28.
1989 – The final stage of the in O-Bahn Busway 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). Born/died:
(b. 1974) Amy Adams ·
: August 20 Day of Restoration of Independence in ( Estonia 1991); in Hungary St. Stephen's Day
(b. 1799) James Prinsep · (b. 1935) Ron Paul · (d. 2013) Narendra Dabholkar