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.
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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
- 1215 –King John of England puts his seal to the Magna Carta.
- 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.
- 1246 –With the death of Duke Frederick II, the Babenberg dynasty ends in Austria.
- 1389 –Battle of Kosovo: The Ottoman Empire defeats Serbs and Bosnians.
- 1580 –Philip II of Spain declares William the Silent to be an outlaw.
- 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.
- 1844 –Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber.
- 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.
- 1896 –The deadliest tsunami in Japan’s history kills more than 22,000 people.
- 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.
- 1934 –The U.S. Great Smoky Mountains National Park is founded.
- 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.
- 1978 –King Hussein of Jordan marries American Lisa Halaby, who takes the name Queen Noor.
- 1985 –Rembrandt’s painting Danaë is attacked by a man (later judged insane) who throws sulfuric acid on the canvas and cuts it twice with a knife.
- 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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