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

October 20: Facts & Myths About This Day

October 20 is the 293^rd day of the year 2025 in the Gregorian calendar. There are 72 days remaining until the end of this year. The day of the week is Monday.

Under the Julian calendar, this day is October 7, 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, 1,760,918,400 seconds 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 ‘dihectaenneacontatrigon’ day.

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

According to the lunisolar Chinese calendar, there are 120 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 4,686 days since this fabled cataclysmic event.

October 20 Historical Events

• 1818 –
  The Convention of 1818 signed between the United States and the United Kingdom which, among other things, settled the Canada – United States border on the 49th parallel for most of its length.
• 1883 –
  Peru and Chile sign the Treaty of Ancón, by which the Tarapacá province is ceded to the latter, bringing an end to Peru’s involvement in the War of the Pacific.
• 1939 –
  Pope Pius XII publishes his first major encyclical entitled Summi Pontificatus.
• 1944 –
  General Douglas MacArthur fulfills his promise to return to the Philippines when he commands an Allied assault on the islands, reclaiming them from the Japanese during the Second World War.
• 1944 –
  The Soviet Army and Yugoslav Partisans liberate Belgrade, the capital of Yugoslavia
• 1951 –
  The “Johnny Bright Incident” occurs in Stillwater, Oklahoma
• 1967 –
  A purported bigfoot is filmed by Patterson and Gimlin.
• 1971 –
  The Nepal Stock Exchange collapses.
• 1977 –
  A plane carrying Lynyrd Skynyrd crashes in Mississippi, killing lead singer Ronnie Van Zant and guitarist Steve Gaines along with backup singer Cassie Gaines, the road manager, pilot, and co-pilot.
• 1982 –
  During the UEFA Cup match between FC Spartak Moscow and HFC Haarlem, 66 people are crushed to death in the Luzhniki disaster.

Who were born on October 20?

• 1616 –
  Thomas Bartholin, Danish physician, mathematician, and theologian (d. 1680)
• 1895 –
  Rex Ingram, American actor (d. 1969)
• 1905 –
  Frederic Dannay, American novelist (d. 1982)
• 1951 –
  Patrick Hall, British politician
• 1958 –
  Ivo Pogorelic, Croatian pianist
• 1958 –
  Valerie Faris, American film director
• 1962 –
  Dave Wong, Hong Kong/Taiwanese singer-songwriter
• 1962 –
  David M. Evans, American screenwriter and film director
• 1965 –
  Jil Caplan, French singer and songwriter
• 1989 –
  Colin Wilson, Canadian-American ice hockey player

Who died on October 20?

• 1570 –
  João de Barros, Portuguese historian (b. 1496)
• 1740 –
  Charles VI, Holy Roman Emperor (b. 1685)
• 1842 –
  Grace Darling, English heroine (b. 1815)
• 1907 –
  Said Pasha Kurd, Kurdish statesman (b. 1834)
• 1953 –
  Werner Baumbach, German bomber pilot (b. 1916)
• 1994 –
  Burt Lancaster, American actor (b. 1913)
• 1999 –
  Calvin Griffith, Former owner of Washington Senators/Minnesota Twins (b. 1911)
• 1999 –
  Jack Lynch, Taoiseach of Ireland (b. 1917)
• 2005 –
  Shirley Horn, American singer (b. 1934)
• 2011 –
  Muammar Gaddafi, Ruler of Libya (b. 1942)