On this day: June 30

Events on June 30

• 763 The Byzantine army of emperor Constantine V defeats the Bulgarian forces in the Battle of Anchialus. Wikipedia
• 1422 Battle of Arbedo between the duke of Milan and the Swiss cantons. Wikipedia
• 1864 U.S. President Abraham Lincoln grants Yosemite Valley to California for "public use, resort and recreation". Wikipedia
• 1876 Serbia declares war on the Ottoman Empire, leading to the Serbian Wars for Independence. Wikipedia
• 1882 Charles J. Guiteau is hanged in Washington, D.C. for the assassination of U.S. President James Garfield. Wikipedia
• 1886 The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4. Wikipedia
• 1892 The Homestead Strike begins near Pittsburgh, Pennsylvania. Wikipedia
• 1905 Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik. Wikipedia
• 1908 The Tunguska Event, the largest impact event on Earth in human recorded history, resulting in a massive explosion over Eastern Siberia. Wikipedia
• 1916 World War I: In "the day Sussex died", elements of the Royal Sussex Regiment take heavy casualties in the Battle of the Boar's Head at Richebourg-l'Avoué in France. Wikipedia
• 1934 German chancellor Adolf Hitler began a purge of the paramilitary wing of the Nazi Party and other political rivals, executing at least 85 people. Wikipedia
• 1934 The Night of the Long Knives, Adolf Hitler's violent purge of his political rivals in Germany, takes place. Wikipedia
• 1944 World War II: The Battle of Cherbourg ends with the fall of the strategically valuable port to American forces. Wikipedia
• 1956 A TWA Super Constellation and a United Airlines DC-7 collide above the Grand Canyon in Arizona and crash, killing all 128 on board both airliners. Wikipedia
• 1963 Ciaculli bombing: a car bomb, intended for Mafia boss Salvatore Greco, kills seven police officers and military personnel near Palermo. Wikipedia
• 1966 The National Organization for Women, a leading United States feminist organization, was founded in Washington, D.C. Wikipedia
• 1966 The National Organization for Women, the United States' largest feminist organization, is founded. Wikipedia
• 1971 The crew of the Soviet Soyuz 11 spacecraft are killed when their air supply escapes through a faulty valve. Wikipedia
• 1972 The first leap second is added to the UTC time system. Wikipedia
• 1974 Municipal workers in Baltimore, Maryland, went on strike seeking higher wages and better conditions. Wikipedia
• 1985 Thirty-nine American hostages from the hijacked TWA Flight 847 are freed in Beirut after being held for 17 days. Wikipedia
• 1986 The U.S. Supreme Court rules in Bowers v. Hardwick that states can outlaw homosexual acts between consenting adults. Wikipedia
• 1989 A building fire in Atlanta killed five people. Wikipedia
• 2009 Yemenia Flight 626, an Airbus A310-300, crashes into the Indian Ocean near Comoros, killing 152 of the 153 people on board. A 14-year-old girl named Bahia Bakari survives the crash. Wikipedia
• 2019 Donald Trump becomes the first sitting US President to visit the Democratic People's Republic of Korea (North Korea). Wikipedia
• 2023 A Tajik citizen with ISIS connections, wanted in Tajikistan for murder and kidnapping, kills two people at Chișinău International Airport in Moldova, after being denied entry to the country. Wikipedia

Born on June 30

• 1470 Charles VIII of France (died 1498) Wikipedia
• 1478 John, Prince of Asturias, Son of Ferdinand II of Aragon and Isabella I of Castile (died 1497) Wikipedia
• 1685 John Gay, English poet and playwright (died 1732) Wikipedia
• 1817 Joseph Dalton Hooker, English botanist and explorer (died 1911) Wikipedia
• 1884 Georges Duhamel, French author and critic (died 1966) Wikipedia
• 1893 Walter Ulbricht, German soldier and politician, chief decision maker and head of state of the GDR (East Germany) (died 1973) Wikipedia
• 1911 Czesław Miłosz, Polish novelist, essayist, and poet, Nobel Prize laureate (died 2004) Wikipedia
• 1917 Susan Hayward, American actress (died 1975) Wikipedia
• 1917 Lena Horne, American actress, singer, and activist (died 2010) Wikipedia
• 1919 Ed Yost, American inventor of the modern hot air balloon (died 2007) Wikipedia
• 1926 Paul Berg, American biochemist and academic, Nobel Prize laureate (died 2023) Wikipedia
• 1936 Assia Djebar, Algerian-French author and translator (died 2015) Wikipedia
• 1954 Serzh Sargsyan, Armenian politician, 3rd President of Armenia Wikipedia
• 1955 Egils Levits, Latvian judge, jurist, 10th President of Latvia Wikipedia
• 1959 Vincent D'Onofrio, American actor Wikipedia
• 1963 Yngwie Malmsteen, Swedish guitarist and songwriter Wikipedia
• 1966 Mike Tyson, American boxer and actor Wikipedia
• 1975 Ralf Schumacher, German race car driver Wikipedia
• 1982 Lizzy Caplan, American actress Wikipedia
• 1983 Cheryl, English singer and TV personality Wikipedia
• 1985 Michael Phelps, American swimmer Wikipedia
• 1986 Fredy Guarín, Colombian footballer Wikipedia

Died on June 30

• 888 Æthelred, archbishop of Canterbury Wikipedia
• 1522 Johann Reuchlin, German humanist and Hebrew scholar (born 1455) Wikipedia
• 1857 Alcide d'Orbigny, French zoologist and paleontologist (born 1802) Wikipedia
• 1882 Charles J. Guiteau, American preacher and lawyer, assassin of James A. Garfield (born 1841) Wikipedia
• 1919 John William Strutt, 3rd Baron Rayleigh, English physicist and academic, Nobel Prize laureate (born 1842) Wikipedia
• 1934 Gregor Strasser, German lieutenant, politician, and early leader of the Nazi Party (born 1892) Wikipedia
• 1934 Karl Ernst, German soldier and SA commander (born 1904) Wikipedia
• 1934 Kurt von Schleicher, German general and politician, 23rd Chancellor of Germany (born 1882) Wikipedia
• 1961 Lee de Forest, American inventor, invented the audion tube (born 1873) Wikipedia
• 1966 Giuseppe Farina, Italian race car driver (born 1906) Wikipedia
• 1984 Lillian Hellman, American author and playwright (born 1905) Wikipedia
• 2009 Pina Bausch, German dancer, choreographer, and director (born 1940) Wikipedia
• 2012 Yitzhak Shamir, Israeli politician, 7th Prime Minister of Israel (born 1915) Wikipedia
• 2017 Simone Veil, French lawyer and politician (born 1927) Wikipedia

Holidays and observances

• Christian feast day: St. Paul the Apostle (solo feast day) Wikipedia
• Christian feast day: Feast of the 12 Apostles Wikipedia
• Christian feast day: First Martyrs of the Church of Rome Wikipedia
• Christian feast day: Our Lady of Good Help (Quebec, Canada) Wikipedia
• Christian feast day: St. Martial Wikipedia
• Christian feast day: St. Theobald of Provins Wikipedia
• Christian feast day: Erentrude Wikipedia
• Christian feast day: St. Adolf of Osnabrück Wikipedia
• Christian feast day: St. Otto of Bamberg Wikipedia
• Christian feast day: Blessed Philip Powell Wikipedia
• Christian feast day: Blessed Vasyl Velychkovsky Wikipedia
• Christian feast day: Blessed Zynoviy Kovalyk Wikipedia
• Christian feast day: June 30 (Eastern Orthodox liturgics) Wikipedia
• Armed Forces Day (Guatemala) Wikipedia
• Asteroid Day (International observance) Wikipedia
• General Prayer Day (Central African Republic) Wikipedia
• Independence Day (Democratic Republic of the Congo), celebrates the independence of Democratic Republic of the Congo from Belgium in 1960. Wikipedia
• Navy Day (Israel) Wikipedia
• Philippine–Spanish Friendship Day (Philippines) Wikipedia
• Revolution Day (Sudan) Wikipedia
• Teachers' Day (Dominican Republic) Wikipedia

The events, births, deaths and observances above are from the English Wikipedia article “June 30” and the articles it links to (authors and history), retrieved 2026-10-09 through the Wikimedia “On this day” feed. They are licensed under CC BY-SA 4.0; this selection is shared under the same licence. We picked the 26 events, 22 births and 14 deaths with the widest coverage across Wikipedia's language editions (counted from Wikidata) and sorted them by year; the wording is unchanged apart from removing references to pictures.