What are the important events that happened on June 23? Here are historical events, facts, and some myths about this day.

June 23: Facts & Myths About This Day

June 23 is the 174^th day of the year 2025 in the Gregorian calendar. There are 191 days remaining until the end of this year. The day of the week is Monday.

Under the Julian calendar, this day is June 10, 2025 – a Monday. Both day of the week are the same but did you notice the difference with the Gregorian calendar?

When this day started, 29,177,280 minutes 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 ‘hectaheptacontatetragon’ day.

Cancer 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 239 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 4,567 days since this fabled cataclysmic event.

June 23 Historical Events

• 1661 –
  Marriage contract between Charles II of England and Catherine of Braganza.
• 1713 –
  The French residents of Acadia are given one year to declare allegiance to Britain or leave Nova Scotia, Canada.
• 1887 –
  The Rocky Mountains Park Act becomes law in Canada creating the nation’s first national park, Banff National Park.
• 1894 –
  The International Olympic Committee is founded at the Sorbonne in Paris, at the initiative of Baron Pierre de Coubertin.
• 1917 –
  In a game against the Washington Senators, Boston Red Sox pitcher Ernie Shore retires 26 batters in a row after replacing Babe Ruth, who had been ejected for punching the umpire.
• 1938 –
  The Civil Aeronautics Act is signed into law, forming the Civil Aeronautics Authority in the United States.
• 1946 –
  The 1946 Vancouver Island earthquake strikes Vancouver Island, British Columbia, Canada.
• 1961 –
  Cold War: the Antarctic Treaty, which sets aside Antarctica as a scientific preserve and bans military activity on the continent, comes into force after the opening date for signature set for the December 1, 1959.
• 1967 –
  Cold War: U.S. President Lyndon B. Johnson meets with Soviet Premier Alexei Kosygin in Glassboro, New Jersey for the three-day Glassboro Summit Conference.
• 1973 –
  A fire at a house in Hull, England which kills a six year old boy is passed off as an accident; it later emerges as the first of 26 deaths by fire caused over the next seven years by arsonist Peter Dinsdale.

Who were born on June 23?

• 1456 –
  Margaret of Denmark, wife of James III of Scotland (d. 1486)
• 1888 –
  Bronson M. Cutting, American politician (d. 1935)
• 1906 –
  King Tribhuvan of Nepal (d. 1955)
• 1910 –
  Gordon B. Hinckley, American religious figure (d. 2008)
• 1955 –
  Jordan, British actress and model
• 1956 –
  Randy Jackson, American music producer
• 1961 –
  LaSalle Thompson, American basketball player
• 1969 –
  Martin Klebba, American actor
• 1975 –
  KT Tunstall, Scottish singer and songwriter
• 1976 –
  Wade Barrett, American soccer player

Who died on June 23?

• 1222 –
  Constance of Aragon, consort of Ladislaus III of Hungary and Frederick II, Holy Roman Emperor (b. c. 1179)
• 1615 –
  Mashita Nagamori, Japanese warlord (b. 1545)
• 1677 –
  Wilhelm Ludwig, Duke of Württemberg (b. 1647)
• 1686 –
  William Coventry, English statesman (b. c. 1628)
• 1733 –
  Johann Jakob Scheuchzer, Swiss scholar (b. 1672)
• 1980 –
  Varahagiri Venkata Giri, Indian politician (b. 1894)
• 1996 –
  Andreas Papandreou, Greek politician (b. 1919)
• 2006 –
  Aaron Spelling, American television producer (b. 1923)
• 2009 –
  Hanne Hiob, German actress (b. 1923)
• 2009 –
  John Callaway, American journalist (b. 1936)