| 73261 | June 26 | Death | 2014 – Bob Mischak, American football player and coach (b. 1932) |
| 73262 | June 26 | Death | 2014 – Julius Rudel, Austrian-American conductor (b. 1921) |
| 73263 | June 26 | Death | 2014 – Mary Rodgers, American composer and author (b. 1931) |
| 73264 | June 26 | Death | 2015 – Richard Matt, American murderer (b. 1966) |
| 73265 | June 26 | Death | 2015 – Yevgeny Primakov, Ukrainian-Russian journalist and politician, 32nd Prime Minister of Russia (b. 1929) |
| 73266 | June 26 | Death | 2015 – Kája Saudek, Czech author and illustrator (b. 1935) |
| 73267 | June 26 | Death | 2015 – Chris Thompson, American screenwriter and producer (b. 1952) |
| 73268 | June 26 | Holiday and observance | Army and Navy Day (Azerbaijan) |
| 73269 | June 26 | Holiday and observance | Christian feast day:Anthelm of BelleyDavid the DendriteHermogiusIsabel Florence Hapgood (Episcopal Church)Jeremiah (Lutheran)John and PaulJosé María Robles Hurtado (one of Saints of the Cristero War)Josemaría EscriváMar Abhai (Syriac Orthodox Church)Vigil |
| 73270 | June 26 | Holiday and observance | Flag Day (Romania) |
| 73271 | June 26 | Holiday and observance | Independence Day (Madagascar), celebrates the independence of Madagascar from France in 1960 |
| 73272 | June 26 | Holiday and observance | Independence Day (Somalia), celebrates the independence of British Somaliland from the British in 1960. (Somalia) |
| 73273 | June 26 | Holiday and observance | International Day against Drug Abuse and Illicit Trafficking (International) |
| 73274 | June 26 | Holiday and observance | International Day in Support of Victims of Torture (International) |
| 73275 | June 26 | Holiday and observance | Ratcatcher's Day (Hamelin, Germany) |
| 73276 | June 26 | Holiday and observance | Sunthorn Phu Day (Thailand) |
| 73277 | June 27 | Event | 1358 – The Republic of Dubrovnik is founded. |
| 73278 | June 27 | Event | 1497 – Cornish rebels Michael An Gof and Thomas Flamank are executed at Tyburn, London, England. |
| 73279 | June 27 | Event | 1556 – The thirteen Stratford Martyrs are burned at the stake near London for their Protestant beliefs. |
| 73280 | June 27 | Event | 1743 – War of the Austrian Succession: In the Battle of Dettingen, George II becomes the last British monarch to participate in battle. |
| 73281 | June 27 | Event | 1759 – General James Wolfe begins the siege of Quebec. |
| 73282 | June 27 | Event | 1760 – Cherokee warriors defeat British forces at the Battle of Echoee near present-day Otto, North Carolina during the Anglo-Cherokee War. |
| 73283 | June 27 | Event | 1806 – British forces take Buenos Aires during the first British invasions of the River Plate. |
| 73284 | June 27 | Event | 1844 – Joseph Smith, founder of the Latter Day Saint movement, and his brother Hyrum Smith, are killed by a mob at the Carthage, Illinois jail. |
| 73285 | June 27 | Event | 1895 – The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives. |
| 73286 | June 27 | Event | 1898 – The first solo circumnavigation of the globe is completed by Joshua Slocum from Briar Island, Nova Scotia. |
| 73287 | June 27 | Event | 1899 – A. E. J. Collins scores 628 runs not out, the highest-ever recorded score in cricket. |
| 73288 | June 27 | Event | 1905 – Battleship Potemkin uprising: sailors start a mutiny aboard the battleship Potemkin, denouncing the crimes of autocracy, demanding liberty and an end to war. |
| 73289 | June 27 | Event | 1927 – Prime Minister of Japan Tanaka Giichi leads a conference to discuss Japan's plans for China later, a document detailing these plans, the "Tanaka Memorial" is leaked, although it is now considered a forgery. |
| 73290 | June 27 | Event | 1941 – Romanian governmental forces, allies of Nazi Germany, launch one of the most violent pogroms in Jewish history in the city of Iași, (Romania), resulting in the murder of at least 13,266 Jews. |