About June 15

June 15, 2025 is the 166th day of the year 2025 in the Gregorian calendar. There are 199 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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Gemini is the sun sign of a person born on this day. Pearl is the modern birthstone for this month. Moonstone is the mystical birthstone from Tibetan origin that dates back over a thousand years.

According to the lunisolar Chinese calendar, there are 247 days remaining before the start of the next Chinese New Year.

What Happened On June 15

  • 1184
    King Magnus V of Norway is killed at the Battle of Fimreite.
  • 1215
    King John of England puts his seal to the Magna Carta.
  • 1389
    Battle of Kosovo: The Ottoman Empire defeats Serbs and Bosnians.
  • 1752
    Benjamin Franklin proves that lightning is electricity (traditional date, the exact date is unknown).
  • 1844
    Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber.
  • 1846
    The Oregon Treaty establishes the 49th parallel as the border between the United States and Canada, from the Rocky Mountains to the Strait of Juan de Fuca.
  • 1859
    Pig War: Ambiguity in the Oregon Treaty leads to the “Northwestern Boundary Dispute” between United States and British/Canadian settlers.
  • 1864
    Arlington National Cemetery is established when 200 acre around Arlington Mansion (formerly owned by Confederate General Robert E. Lee) are officially set aside as a military cemetery by U.S. Secretary of War Edwin M. Stanton.
  • 1867
    Atlantic Cable Quartz Lode gold mine located in Montana.
  • 1905
    Princess Margaret of Connaught marries Gustaf, Crown Prince of Sweden.
  • 1916
    U.S. President Woodrow Wilson signs a bill incorporating the Boy Scouts of America, making them the only American youth organization with a federal charter.
  • 1919
    John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.
  • 1920
    A new border treaty between Germany and Denmark gives northern Schleswig to Denmark.
  • 1934
    The U.S. Great Smoky Mountains National Park is founded.
  • 1945
    The General Dutch Youth League (ANJV) is founded in Amsterdam, Netherlands.
  • 1954
    UEFA (Union of European Football Associations) is formed in Basel, Switzerland.
  • 1955
    The Eisenhower administration stages the first annual “Operation Alert” (OPAL) exercise, an attempt to assess the USA’s preparations for a nuclear attack.
  • 1992
    The United States Supreme Court rules in United States v. Álvarez-Machaín that it is permissible for the United States to forcibly extradite suspects in foreign countries and bring them to the USA for trial, without approval from those other countries.
  • 1996
    The Provisional Irish Republican Army explodes a large bomb in the middle of Manchester, England.
  • 2002
    Near-Earth asteroid 2002 MN misses the Earth by 75000 mi, about one-third of the distance between the Earth and the Moon.

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