About June 15

June 15, 2021 is the 166th day of the year 2021 in the Gregorian calendar. There are 199 days remaining until the end of this year. The day of the week is Tuesday.

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 231 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.
  • 1219
    Northern Crusades: Danish victory at the Battle of Lyndanisse (modern-day Tallinn) establishes the Danish Duchy of Estonia. According to legend, this battle also marks the first use of the Dannebrog, the world’s first national flag still in use, as the national flag of Denmark.
  • 1667
    The first human blood transfusion is administered by Dr. Jean-Baptiste Denys.
  • 1775
    American Revolutionary War: George Washington is appointed commander-in-chief of the Continental Army.
  • 1804
    New Hampshire approves the Twelfth Amendment to the United States Constitution, ratifying the document.
  • 1859
    Pig War: Ambiguity in the Oregon Treaty leads to the “Northwestern Boundary Dispute” between United States and British/Canadian settlers.
  • 1877
    Henry Ossian Flipper becomes the first African American cadet to graduate from the United States Military Academy.
  • 1896
    The deadliest tsunami in Japan’s history kills more than 22,000 people.
  • 1904
    A fire aboard the steamboat SS General Slocum in New York City’s East River kills 1,000.
  • 1905
    Princess Margaret of Connaught marries Gustaf, Crown Prince of Sweden.
  • 1909
    Representatives from England, Australia and South Africa meet at Lord’s and form the Imperial Cricket Conference.
  • 1913
    The Battle of Bud Bagsak in the Philippines ends.
  • 1920
    A new border treaty between Germany and Denmark gives northern Schleswig to Denmark.
  • 1940
    World War II: Operation Ariel begins – Allied troops start to evacuate France, following Germany’s takeover of Paris and most of the nation.
  • 1944
    In the Saskatchewan general election, the CCF, led by Tommy Douglas, is elected and forms the first socialist government in North America.
  • 1945
    The General Dutch Youth League (ANJV) is founded in Amsterdam, Netherlands.
  • 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.
  • 1994
    Israel and Vatican City establish full diplomatic relations.
  • 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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