What are the important events that happened on June 20? Here are historical events, facts, and some myths about this day.

June 20: Facts & Myths About This Day

June 20 is the 171^st day of the year 2025 in the Gregorian calendar. There are 194 days remaining until the end of this year. The day of the week is Friday.

Under the Julian calendar, this day is June 7, 2025 – a Friday. Both day of the week are the same but did you notice the difference with the Gregorian calendar?

When this day started, 486,216 hours has elapsed since midnight of January 1, 1970 – the Unix epoch.

Strange as it may, if we name this day after a polygon then it will be called ‘hectaheptacontahenagon’ day.

Gemini is the zodiac sign of a person born on this day. Pearl is the modern birthstone for this month. Moonstone is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 242 days remaining before the start of the next Chinese New Year.

The ancient Maya civilization believes that the end of the world will happen on December 21, 2012. There are now 4,564 days since this fabled cataclysmic event.

June 20: This Day In History

On leap years, this day usually marks the summer solstice in the northern hemisphere and the winter solstice in the southern hemisphere.

June 20 Historical Events

• 451 –
  Battle of Chalons: Flavius Aetius’ battles Attila the Hun. After the battle, which was inconclusive, Attila retreats, causing the Romans to interpret it as a victory.
• 1631 –
  The sack of Baltimore: the Irish village of Baltimore is attacked by Algerian pirates.
• 1787 –
  Oliver Ellsworth moves at the Federal Convention to call the government the United States.
• 1893 –
  Lizzie Borden is acquitted of the murders of her father and stepmother.
• 1942 –
  The Holocaust: Kazimierz Piechowski and three others, dressed as members of the SS-Totenkopfverbände, steal an SS staff car and escape from the Auschwitz concentration camp.
• 1944 –
  World War II: The Battle of the Philippine Sea concludes with a decisive U.S. naval victory. The lopsided naval air battle is also known as the “Great Marianas Turkey Shoot”.
• 1948 –
  Toast of the Town, later The Ed Sullivan Show, makes its television debut.
• 1959 –
  A rare June hurricane strikes Canada’s Gulf of St. Lawrence killing 35.
• 1972 –
  Watergate scandal: An 18½-minute gap appears in the tape recording of the conversations between U.S. President Richard Nixon and his advisers regarding the recent arrests of his operatives while breaking into the Watergate complex.
• 1990 –
  Asteroid Eureka is discovered.

Who were born on June 20?

• 1699 –
  William Gustav of Anhalt-Dessau (d. 1737)
• 1723 –
  Adam Ferguson, Scottish philosopher and historian (d. 1816)
• 1761 –
  Jacob Hübner, German entomologist (d. 1826)
• 1771 –
  Hermann von Boyen, German army officer (d. 1848)
• 1862 –
  Marco Praga, Italian playwright (d. 1929)
• 1908 –
  Billy Werber, American baseball player (d. 2009)
• 1951 –
  Paul Muldoon, Northern Irish poet
• 1952 –
  John Goodman, American actor
• 1964 –
  Pierfrancesco Chili, Italian motorcycle racer
• 1969 –
  Misha Verbitsky, Russian mathematician

Who died on June 20?

• 840 –
  Louis the Pious, Emperor of the Holy Roman Empire (b. 778)
• 1837 –
  William IV of the United Kingdom (b. 1765)
• 1925 –
  Josef Breuer, Austrian psychologist (b. 1842)
• 1952 –
  Luigi Fagioli, Italian race car driver (b. 1898)
• 1972 –
  Howard Johnson, American businessman, originator of restaurant chain (b. 1897)
• 1976 –
  Lou Klein, American baseball player (b. 1918)
• 1999 –
  Clifton Fadiman, American author (b. 1902)
• 2002 –
  Tinus Osendarp, Dutch runner (b. 1916)
• 2006 –
  Billy Johnson, American baseball player (b. 1918)
• 2011 –
  Ryan Dunn, American actor (b. 1977)