About April 17

April 17, 2025 is the 107th day of the year 2025 in the Gregorian calendar. There are 258 days remaining until the end of this year. The day of the week is Thursday.

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

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Aries 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 306 days remaining before the start of the next Chinese New Year.

What Happened On April 17

  • 69
    After the First Battle of Bedriacum, Vitellius becomes Roman Emperor.
  • 1080
    King of Denmark Harald III dies and is succeeded by Canute IV, who would later be the first Dane to be canonized.
  • 1397
    Geoffrey Chaucer tells the Canterbury Tales for the first time at the court of Richard II. Chaucer scholars have also identified this date (in 1387) the start of the book’s pilgrimage to Canterbury.
  • 1492
    Spain and Christopher Columbus sign the Capitulations of Santa Fe for his voyage to Asia to acquire spices.
  • 1555
    After 18 months of siege, Siena surrenders to the Florentine-Imperial army. The Republic of Siena is incorporated into the Grand Duchy of Tuscany.
  • 1864
    American Civil War: The Battle of Plymouth begins – Confederate forces attack Plymouth, North Carolina.
  • 1907
    The Ellis Island immigration center processes 11,747 people, more than on any other day.
  • 1912
    Russian troops open fire on striking goldfield workers in northeast Siberia, killing at least 150.
  • 1942
    French prisoner of war General Henri Giraud escapes from his castle prison in Festung Königstein.
  • 1944
    Forces of the Communist-controlled Greek People’s Liberation Army attack the smaller National and Social Liberation resistance group, which surrenders. Its leader Dimitrios Psarros is murdered.
  • 1946
    Syria obtains its Independence from the French occupation.
  • 1949
    At midnight 26 Irish counties officially leave the British Commonwealth. A 21-gun salute on O'Connell Bridge, Dublin, ushers in the Republic of Ireland.
  • 1951
    The Peak District becomes the United Kingdom’s first National Park.
  • 1961
    Bay of Pigs Invasion: A group of CIA financed and trained Cuban exiles lands at the Bay of Pigs in Cuba with the aim of ousting Fidel Castro.
  • 1964
    Jerrie Mock becomes the first woman to circumnavigate the world by air.
  • 1969
    Czechoslovakian Communist Party chairman Alexander Dubček is deposed.
  • 1969
    Sirhan Sirhan is convicted of assassinating Robert F. Kennedy.
  • 1970
    Apollo program: The ill-fated Apollo 13 spacecraft returns to Earth safely.
  • 1971
    The People’s Republic of Bangladesh forms, under Sheikh Mujibur Rahman at Mujibnagor.
  • 2006
    Sami Hammad, a Palestinian suicide bomber, detonates an explosive device in Tel Aviv, killing 11 people and injuring 70.

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