About April 20
April 20, 2025 is the 110th day of the year 2025 in the Gregorian calendar. There are 255 days remaining until the end of this year. The day of the week is Sunday.
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Aries is the sun sign of a person born on this day. Diamond is the modern birthstone for this month. Opal is the mystical birthstone from Tibetan origin that dates back over a thousand years.
According to the lunisolar Chinese calendar, there are 303 days remaining before the start of the next Chinese New Year.
What Happened On April 20
- 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.
- 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.
- 1689 –The former King James II of England, now deposed, lays siege to Derry.
- 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.
- 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.
- 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.
- 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.
- 1985 –The ATF raids The Covenant, The Sword, and the Arm of the Lord compound in northern Arkansas.
- 1998 –German terrorist group the Red Army Faction announces their dissolution after 28 years.
- 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.
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