April
20
Events
1303 – The
University of Rome La Sapienza is instituted by Pope Boniface
VIII.
1453 – The last naval battle in Byzantine history occurs, as
three Genoese galleys escorting a Byzantine transport fight
their way through the huge Ottoman blockade fleet and into the
Golden Horn.
1526 – The last ruler of the Lodi Dynasty, Ibrahim Lodi is defeated
and killed by Babur in the First Battle of Panipat.
1534 – Jacques Cartier begins the voyage during which he discovers
Canada and Labrador.
1535 – The Sun dog phenomenon observed over Stockholm and depicted
in the famous painting "Vädersolstavlan".
1653 – Oliver Cromwell dissolves the Rump Parliament.
1657 – Admiral Robert Blake destroys a Spanish silver fleet
under heavy fire at Santa Cruz de Tenerife.
1657 – Freedom of religion is granted to the Jews of New Amsterdam
(later New York City).
1689 – The former King James II of England, now deposed, lays
siege to Derry.
1752 – Start of Konbaung-Hanthawaddy War, a new phase in Burmese
Civil War (1740–1757)
1770 – The Georgian king Erekle II, abandoned by his Russian
ally Count Totleben, wins a victory over Ottoman forces at Aspindza.
1775 – American Revolutionary War: the Siege of Boston begins,
following the battles at Lexington and Concord.
1792 – France declares war against the "King of Hungary
and Bohemia", the beginning of French Revolutionary Wars.
1809 – Two Austrian army corps in Bavaria are defeated by a
First French Empire army led by Napoleon I of France at the
Battle of Abensberg on the second day of a four day campaign
that ended in a French victory.
1810 – The Governor of Caracas declares independence from Spain.
1818 – The case of Ashford v Thornton ends, with Abraham Thornton
allowed to go free rather than face a retrial for murder, after
his demand for trial by battle is upheld.
1828 – René Caillié becomes the first non-Muslim to enter Timbouctou.
1836 – U.S. Congress passes an act creating the Wisconsin Territory.
1861 – American Civil War: Robert E. Lee resigns his commission
in the United States Army in order to command the forces of
the state of Virginia.
1862 – Louis Pasteur and Claude Bernard complete the first pasteurization
tests.
1865 – Astronomer Pietro Angelo Secchi demonstrates the Secchi
disk, which measures water clarity, aboard Pope Pius IX's yacht,
the L’Immaculata Concezion.
1871 – The Civil Rights Act of 1871 becomes law.
1876 – The April Uprising, a key point in modern Bulgarian history,
leading to the Russo-Turkish War and the liberation of Bulgaria
from domination as an independent part of the Ottoman Empire.
1884 – Pope Leo XIII publishes the encyclical Humanum Genus.
1902 – Pierre and Marie Curie refine radium chloride.
1908 – Opening day of competition in the New South Wales Rugby
League.
1912 – Opening day for baseball's Tiger Stadium in Detroit,
Michigan, and Fenway Park in Boston, Massachusetts.
1914 – 19 men, women, and children die in the Ludlow Massacre
during a Colorado coal-miner's strike.
1916 – The Chicago Cubs play their first game at Weeghman Park
(currently Wrigley Field), defeating the Cincinnati Reds 7-6
in 11 innings.
1918 – Manfred von Richthofen, aka The Red Baron, shoots down
his 79th and 80th victims, his final victories before his death
the following day.
1922 – The Soviet government creates South Ossetian Autonomous
Oblast within Georgian SSR.
1926 – Western Electric and Warner Bros. announce Vitaphone,
a process to add sound to film.
1939 – Adolf Hitler's 50th birthday is celebrated as a national
holiday in Nazi Germany.
1939 – Billie Holiday records the first Civil Rights song "Strange
Fruit".
1945 – World War II: US troops capture Leipzig, Germany, only
to later cede the city to the Soviet Union.
1945 – World War II: Fuehrerbunker: Adolf Hitler makes his last
trip to the surface to award Iron Crosses to boy soldiers of
the Hitler Youth.
1946 – The League of Nations officially dissolves, giving most
of its power to the United Nations.
1961 – Failure of the Bay of Pigs Invasion of US-backed Cuban
exiles against Cuba.
1964 – BBC Two launches with a power cut because of the fire
at Battersea Power Station.
1968 – English politician Enoch Powell makes his controversial
Rivers of Blood speech.
1972 – Apollo 16, commanded by John Young, lands on the moon.
1978 – Korean Air Flight 902 is shot down by the Soviet Union.
1980 – Climax of Berber Spring in Algeria as hundreds of Berber
political activists are arrested.
1984 – The Good Friday Massacre, an extremely violent ice hockey
playoff game, is played in Montreal, Canada.
1985 – The ATF raids The Covenant, The Sword, and the Arm of
the Lord compound in northern Arkansas.
1986 – Pianist Vladimir Horowitz performs in his native Russia
for the first time in 61 years.
1998 – German terrorist group the Red Army Faction announces
their dissolution after 28 years.
1999 – Columbine High School massacre: Eric Harris and Dylan
Klebold kill 13 people and injure 24 others before committing
suicide at Columbine High School in Jefferson County, Colorado.
2007 – Johnson Space Center Shooting: A man with a handgun barricades
himself in NASA's Johnson Space Center in Houston, Texas before
killing a male hostage and himself.
2008 – Danica Patrick wins the Indy Japan 300 becoming the first
female driver in history to win an Indy car race.
2010 – The Deepwater Horizon oil well explodes in the Gulf of
Mexico, killing twelve workers and beginning an oil spill that
would last six months.
Holidays
and observances
4/20 (International
counterculture holiday)
Christian Feast Day:
Agnes of Montepulciano
Blessed Oda of Brabant
Theotimos
April 20 (Eastern Orthodox liturgics)
Ridván begins at sunset (Bahá'í Faith)
For details, contact Datacentre
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