What are the important events that happened on April 21? Here are historical events, facts, and some myths about this day.

April 21: Facts & Myths About This Day

April 21 is the 111^th day of the year 2025 in the Gregorian calendar. There are 254 days remaining until the end of this year. The day of the week is Monday.

Under the Julian calendar, this day is April 8, 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, 484,776 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 ‘hectadecahenagon’ day.

Taurus is the zodiac 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 302 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 4,504 days since this fabled cataclysmic event.

April 21 Historical Events

• 753 BC –
  Romulus and Remus founded Rome (traditional date).
• 900 –
  The Laguna Copperplate Inscription: the Honourable Namwaran and his children, Lady Angkatan and Bukah, are granted pardon from all their debts by the Commander and Chief of Tundun, as represented by the Honourable Jayadewa, Lord Minister of Pailah. Luzon, Philippines.
• 1809 –
  Two Austrian army corps are driven from Landshut by a First French Empire army led by Napoleon I of France as two French corps to the north hold off the main Austrian army on the first day of the Battle of Eckmühl.
• 1918 –
  World War I: German fighter ace Manfred von Richthofen, known as “The Red Baron”, is shot down and killed over Vaux-sur-Somme in France.
• 1960 –
  Founding of the Orthodox Bahá'í Faith in Washington, D.C.
• 1962 –
  The Seattle World’s Fair (Century 21 Exposition) opens. It is the first World’s Fair in the United States since World War II.
• 1964 –
  A Transit-5bn satellite fails to reach orbit after launch; as it re-enters the atmosphere, 2.1 lb of radioactive plutonium in its SNAP RTG power source is widely dispersed.
• 1967 –
  Greek military junta of 1967–1974: A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years.
• 1970 –
  The Hutt River Province Principality secedes from Australia.
• 1982 –
  Baseball: Rollie Fingers of the Milwaukee Brewers becomes the first pitcher to record 300 saves.

Who were born on April 21?

• 1651 –
  Blessed Joseph Vaz, Apostle of Ceylon (d. 1711)
• 1767 –
  Elisabeth of Württemberg, Archduchess of Austria (d. 1790)
• 1851 –
  Charles Barrois, French geologist (d. 1939)
• 1907 –
  Wade Mainer, American singer and banjoist
• 1911 –
  Leonard Warren, American opera baritone (d. 1960)
• 1954 –
  James Morrison, American actor
• 1957 –
  Edward Leslie, American professional wrestler
• 1965 –
  Fiona Kelleghan, American academic and critic
• 1970 –
  Nicole Sullivan, American actress
• 1978 –
  Jukka Nevalainen, Finnish drummer (Nightwish)

Who died on April 21?

• 866 –
  Bardas, Byzantine noble and minister (b. unknown)
• 1551 –
  Oda Nobuhide, Japanese warlord (b. 1510)
• 1722 –
  Robert Beverley, Jr., historian of Colonial Virginia (b. 1673)
• 1792 –
  Tiradentes, Brazilian revolutionary (b. 1746)
• 1863 –
  Sir Robert Bateson, 1st Baronet, Irish nobility (b. 1782)
• 1978 –
  Thomas Wyatt Turner, American civil rights advocate and agricultural engineer (b. 1877)
• 1996 –
  Dzhokhar Dudaev, Chechen leader (b. 1944)
• 2000 –
  Neal Matthews, Jr., American singer (b. 1929)
• 2008 –
  Al Wilson, American singer (b. 1939)
• 2011 –
  Catharina Halkes, Dutch theologian and feminist (b. 1920)