| 72451 | June 24 | Death | 2015 – Cristiano Araújo, Brazilian singer-songwriter (b. 1986) |
| 72452 | June 24 | Death | 2015 – Mario Biaggi, American police officer and politician (b. 1917) |
| 72453 | June 24 | Death | 2015 – Walter Browne, Australian-American chess and poker player (b. 1949) |
| 72454 | June 24 | Death | 2015 – Marva Collins, American author and educator (b. 1936) |
| 72455 | June 24 | Death | 2015 – Susan Ahn Cuddy, American lieutenant (b. 1915) |
| 72456 | June 24 | Death | 2015 – John Palmer, English criminal (b. 1950) |
| 72457 | June 24 | Holiday and observance | Christian feast day:María Guadalupe García ZavalaNativity of St. John the BaptistJune 24 (Eastern Orthodox liturgics) |
| 72458 | June 24 | Holiday and observance | Discovery Day, observed on the nearest Monday to June 24 (Newfoundland and Labrador) |
| 72459 | June 24 | Holiday and observance | Earliest day on which Armed Forces Day can fall, while June 30 is the latest celebrated on the last Saturday in June. (United Kingdom) |
| 72460 | June 24 | Holiday and observance | Earliest day on which Mother's Day can fall, while June 30 is the latest celebrated on the last Sunday in June. (Kenya) |
| 72461 | June 24 | Holiday and observance | Feast of Raḥmat (Bahá'í Faith) (Date is generally June 24, but this may vary from year to year) |
| 72462 | June 24 | Holiday and observance | Army Day or Battle of Carabobo Day (Venezuela) |
| 72463 | June 24 | Holiday and observance | Bannockburn Day (Scotland) |
| 72464 | June 24 | Holiday and observance | Day of the Caboclo (Amazonas, Brazil) |
| 72465 | June 24 | Holiday and observance | St John's Day and the second day of the Midsummer celebrations (although this is not the astronomical summer solstice, see June 20) (Roman Catholic Church, Europe), and its related observances:Enyovden (Bulgaria)Jaanipäev (Estonia)Jāņi (Latvia)Jónsmessa ( |
| 72466 | June 24 | Holiday and observance | Youth Day (Ukraine) |
| 72467 | June 25 | Event | 524 – The Franks are defeated by the Burgundians in the Battle of Vézeronce. |
| 72468 | June 25 | Event | 841 – In the Battle of Fontenay-en-Puisaye, forces led by Charles the Bald and Louis the German defeat the armies of Lothair I of Italy and Pepin II of Aquitaine. |
| 72469 | June 25 | Event | 1530 – At the Diet of Augsburg the Augsburg Confession is presented to the Holy Roman Emperor by the Lutheran princes and Electors of Germany. |
| 72470 | June 25 | Event | 1658 – Spanish forces fail to retake Jamaica at the Battle of Rio Nuevo during the Anglo-Spanish War. |
| 72471 | June 25 | Event | 1678 – Venetian Elena Cornaro Piscopia is the first woman awarded a doctorate of philosophy when she graduates from the University of Padua. |
| 72472 | June 25 | Event | 1741 – Maria Theresa of Austria is crowned Queen of Hungary. |
| 72473 | June 25 | Event | 1786 – Gavriil Pribylov discovers St. George Island of the Pribilof Islands in the Bering Sea. |
| 72474 | June 25 | Event | 1788 – Virginia becomes the tenth state to ratify the United States Constitution. |
| 72475 | June 25 | Event | 1876 – Battle of the Little Bighorn and the death of Lieutenant Colonel George Armstrong Custer. |
| 72476 | June 25 | Event | 1900 – The Taoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China. |
| 72477 | June 25 | Event | 1906 – Pittsburgh, Pennsylvania millionaire Harry Thaw shoots and kills prominent architect Stanford White. |
| 72478 | June 25 | Event | 1910 – The United States Congress passes the Mann Act, which prohibits interstate transport of females for “immoral purposes” the ambiguous language would be used to selectively prosecute people for years to come. |
| 72479 | June 25 | Event | 1910 – Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer. |
| 72480 | June 25 | Event | 1913 – American Civil War veterans begin arriving at the Great Reunion of 1913. |