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.
Is this your birthday? Are you not curious to learn who shares your special day? Find out the June 15 famous birthdays and expand your knowledge today. (Sponsored link)
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
- 1580 –Philip II of Spain declares William the Silent to be an outlaw.
- 1667 –The first human blood transfusion is administered by Dr. Jean-Baptiste Denys.
- 1752 –Benjamin Franklin proves that lightning is electricity (traditional date, the exact date is unknown).
- 1775 –American Revolutionary War: George Washington is appointed commander-in-chief of the Continental Army.
- 1785 –Jean-François Pilâtre de Rozier, co-pilot of the first-ever manned flight (1783), and his companion, Pierre Romain, become the first-ever casualties of an air crash when their hot air balloon explodes during their attempt to cross the English Channel.
- 1808 –Joseph Bonaparte becomes King of Spain.
- 1836 –Arkansas is admitted as the 25th U.S. state.
- 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 –American Civil War: The Second Battle of Petersburg begins.
- 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.
- 1888 –Crown Prince Wilhelm becomes Kaiser Wilhelm II; he will be the last Emperor of the German Empire.
- 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.
- 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.
- 1991 –In the Philippines, Mount Pinatubo erupts in the second largest volcanic eruption of the 20th Century. In the end, over 800 people die.
- 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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