About April 21

April 21, 2025 is the 111th 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.

You can browse the full year calendar in case you need it.

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Taurus 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 302 days remaining before the start of the next Chinese New Year.

What Happened On April 21

  • 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.
  • 1792
    Tiradentes, a revolutionary leading a movement for Brazil’s independence, is hanged, drawn and quartered.
  • 1894
    Norway formally adopts the Krag-Jørgensen rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.
  • 1941
    Emmanouil Tsouderos becomes the 132nd Prime Minister of Greece.
  • 1945
    World War II: Soviet Union forces south of Berlin at Zossen attack the German High Command headquarters.
  • 1952
    Secretary‘s Day (now Administrative Professionals’Day) is first celebrated.
  • 1960
    Brasília, Brazil’s capital, is officially inaugurated. At 9:30 am the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.
  • 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.
  • 1963
    The Universal House of Justice of the Bahá'í Faith is elected for the first time.
  • 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.
  • 1965
    The 1964-1965 New York World’s Fair opens for its second and final season.
  • 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.
  • 1975
    Vietnam War: President of South Vietnam Nguyen Van Thieu flees Saigon, as Xuan Loc, the last South Vietnamese outpost blocking a direct North Vietnamese assault on Saigon, falls.
  • 1987
    The Tamil Tigers are blamed for a car bomb that explodes in the Sri Lankan city of Colombo, killing 106 people.
  • 1989
    Tiananmen Square Protests of 1989: In Beijing, around 100,000 students gather in Tiananmen Square to commemorate Chinese reform leader Hu Yaobang.
  • 1993
    The Supreme Court in La Paz, Bolivia, sentences former dictator Luis Garcia Meza to 30 years in jail without parole for murder, theft, fraud and violating the constitution.
  • 1994
    The first discoveries of extrasolar planets are announced by astronomer Alexander Wolszczan.
  • 2004
    Five suicide car bombers target police stations in and around Basra, killing 74 people and wounding 160.

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