| 715 | | St. Gregory II begins his reign as Catholic Pope. |
| 1535 | | French explorer Jacques Cartier sets sail for North America. |
| 1536 | | Anne Boleyn is beheaded on Tower Green. |
| 1568 | | Defeated by the Protestants, Mary, Queen of Scots, flees to England where Queen Elizabeth imprisons her. |
| 1588 | | The Spanish Armada sets sail from Lisbon, Spain. |
| 1608 | | The Protestant states form the Evangelical Union of Lutherans and Calvinists. |
| 1635 | | Cardinal Richelieu of France intervenes in the great conflict in Europe by declaring war on the Hapsburgs in Spain. |
| 1643 | | The French army defeats a Spanish army at Rocroi, France. |
| 1780 | | Near total darkness descends on New England at noon. No explanation is found. |
| 1856 | | Senator Charles Sumner speaks out against slavery. |
| 1858 | | A pro-slavery band led by Charles Hameton executes unarmed Free State men near Marais des Cygnes on the Kansas-Missouri border. |
| 1863 | | Union General Ulysses S. Grant's first attack on Vicksburg is repulsed. |
| 1864 | | The Union and Confederate armies launch their last attacks against each other at Spotsylvania, Virginia. |
| 1921 | | Congress sharply curbs immigration, setting a national quota system. |
| 1935 | | The National Football League adopts an annual college draft to begin in 1936. |
| 1964 | | U.S. diplomats find at least 40 microphones planted in the American embassy in Moscow. |
| 1967 | | U.S. planes bomb Hanoi for the first time. |
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