|Holiday name||Holiday location||Holiday type|
|Aymara New Year Day||Bolivia||National Holiday|
|International Day of Yoga||-||International (Health & Body, United Nations)|
|National Day||Greenland||Public Holiday|
|Day of the Martyrs||Togo||Public Holiday|
|Music Festival||Congo Democratic Republic||Observance|
|National Selfie Day||-||Unofficial (Fun & Joy)|
|National Peaches ‘N’ Cream Day||-||Unofficial (Food & Drinks)|
|National Day of the Gong||-||Unofficial (Art & Entertainment, Hobby & Creativity)|
|Go Skateboarding Day||-||Unofficial (Activity & Action, Sports)|
|National Daylight Appreciation Day||-||Unofficial (Nature & Environment)|
|National Seashell Day||-||Unofficial (Hobby & Creativity)|
|June Solstice||Multiple [Show]||Season|
|National Indigenous Peoples Day||Canada (Northwest Territories, Yukon)||Local Holiday|
Historical Events on June 21
- 1734: After being convicted of setting the city of Montreal in New France on Fire, Marie-Joseph Angélique is executed.
- 1749: In Nova Scotia, Halifax is officially established.
- 1788: New Hampshire ratifies the U.S Constitution and then becomes the 9thS State.
- 1791: King Louis XVI of France and his family attempt to escape France during the French Revolution.
- 1798: At the Battle of Vinegar Hill during the Irish Rebellion of 1798, Irish rebels are defeated by British forces.
- 1813: At the Battle of Vitoria, Joseph Bonaparte is defeated by Wellington.
- 1898: Guam is captured from Spain by the U.S.
- 1940: The first successful navigation of the Northwest Passage from the western portion to the eastern begins at the city of Vancouver in British Columbia.
- 1942: German and Italiam forces seize Tobruk during World War 2.
- 1942: Surfacing near the Columbia River in Oregon, an Imperial Japanese submarine fires seventeen shells at Fort Stevens.
- 1945: The Battle of Okinawa comes to a conclusion during World War II.
- 1973: The Miller Test for obscenity in United States’ law is established when the U.S. Supreme Court hands down the decision in Miller v. California 413 US 15.
- 1982: For the attempted assassination of United States’ President Ronald Reagan, John Hinckley is found not guilty because of insanity.
- 1989: In the case Texas v. Johnson, the United States Supreme Court rules that flag burning is a form of acceptable political protest that is protected by the 1st
- 2006: The newly discovered moons of Pluto are given names: Hydra and Nix.
Famous Birthdays on June 21
- French philosopher and author, Jean-Paul Sartre is born in 1905.
- American philosopher William Frankena is born in 1908.
- American novelist Mary McCarthy is born in 1912.
- English historian James Joll is born in 1918.
- American actress and singer, Judy Holliday is born in 1921.
- American actress and singer, Jane Russell is born in 1921.
- American actress Maureen Stapleton is born in 1925.
- Pakistani financier and 11th Prime Minister of Pakistan, Benazir Bhutto is born in 1953.
- American singer-songwriter Kip Winger is born in 1961.
- American actor Doug Savant is born in 1964.
- English actor David Morrissey is born in 1964.