About April 13

April 13, 2025 is the 103rd day of the year 2025 in the Gregorian calendar. There are 262 days remaining until the end of this year. The day of the week is Sunday.

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 310 days remaining before the start of the next Chinese New Year.

What Happened On April 13

  • 1111 –
    Henry V is crowned Holy Roman Emperor.
  • 1204 –
    Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire.
  • 1256 –
    The Grand Union of the Augustinian order formed when Pope Alexander IV issues a papal bull Licet ecclesiae catholicae.
  • 1598 –
    Henry IV of France issues the Edict of Nantes, allowing freedom of religion to the Huguenots. (Edict repealed in 1685.)
  • 1613 –
    Samuel Argall kidnaps Chief Powhatan’s daughter, Pocahontas in Virginia along the Potomac River.
  • 1776 –
    American Revolutionary War: American forces are surprised in the Battle of Bound Brook, New Jersey.
  • 1902 –
    James C. Penney opens his first store in Kemmerer, Wyoming.
  • 1919 –
    Jallianwala Bagh massacre: British troops massacre at least 379 unarmed demonstrators in Amritsar, India. At least 1200 wounded.
  • 1919 –
    The Establishment of the Provisional Government of the Republic of Korea.
  • 1941 –
    Pact of neutrality between the USSR and Japan is signed.
  • 1943 –
    The Jefferson Memorial is dedicated in Washington, D.C., on the 200th anniversary of Thomas Jefferson’s birth.
  • 1943 –
    World War II: The discovery of a mass grave of Polish prisoners of war executed by Soviet forces in the Katyń Forest Massacre is announced, causing a diplomatic rift between the Polish government in exile in London from the Soviet Union, which denies responsibility.
  • 1945 –
    World War II: Soviet and Bulgarian forces capture Vienna, Austria.
  • 1948 –
    The Hadassah medical convoy massacre: In an ambush, 79 Jewish doctors, nurses and medical students from Hadassah Hospital and a British soldier are massacred by Arabs in Sheikh Jarra near Jerusalem.
  • 1960 –
    The United States launches Transit 1-B, the world’s first satellite navigation system.
  • 1972 –
    Vietnam War: The Battle of An Lộc begins.
  • 1974 –
    Western Union (in cooperation with NASA and Hughes Aircraft) launches the United States’ first commercial geosynchronous communications satellite, Westar 1.
  • 1984 –
    India moves into Siachen Glacier thus annexing more territory from the Line of Control.
  • 1992 –
    The Great Chicago Flood.
  • 1997 –
    Tiger Woods becomes the youngest golfer to win the Masters Tournament.

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