| 75691 | July 3 | Event | 1778 – American Revolutionary War: British forces kill 360 people in the Wyoming Valley massacre. |
| 75692 | July 3 | Event | 1819 – The Bank of Savings in New York City, the first savings bank in the United States, opens. |
| 75693 | July 3 | Event | 1839 – The first state normal school in the United States, the forerunner to today's Framingham State College, opens in Lexington, Massachusetts with three students. |
| 75694 | July 3 | Event | 1844 – The last pair of great auks is killed. |
| 75695 | July 3 | Event | 1848 – Slaves are freed in the Danish West Indies (now U.S. Virgin Islands) by Peter von Scholten in the culmination of a year-long plot by enslaved Africans. |
| 75696 | July 3 | Event | 1849 – The French enter Rome in order to restore Pope Pius IX to power. This would prove a major obstacle to Italian unification. |
| 75697 | July 3 | Event | 1852 – Congress establishes the United States' 2nd mint in San Francisco. |
| 75698 | July 3 | Event | 1863 – American Civil War: The final day of the Battle of Gettysburg culminates with Pickett's Charge. |
| 75699 | July 3 | Event | 1866 – Austro-Prussian War is decided at the Battle of Königgrätz, resulting in Prussia taking over as the prominent German nation from Austria. |
| 75700 | July 3 | Event | 1884 – Dow Jones & Company publishes its first stock average. |
| 75701 | July 3 | Event | 1886 – Karl Benz officially unveils the Benz Patent Motorwagen: The first purpose-built automobile. |
| 75702 | July 3 | Event | 1886 – The New-York Tribune becomes the first newspaper to use a linotype machine, eliminating typesetting by hand. |
| 75703 | July 3 | Event | 1890 – Idaho is admitted as the 43rd U.S. state. |
| 75704 | July 3 | Event | 1898 – Spanish–American War: The Spanish fleet, led by Pascual Cervera y Topete, is destroyed by the U.S. Navy in Santiago, Cuba. |
| 75705 | July 3 | Event | 1913 – Confederate veterans at the Great Reunion of 1913 reenact Pickett's Charge upon reaching the high-water mark of the Confederacy they are met by the outstretched hands of friendship from Union survivors. |
| 75706 | July 3 | Event | 1938 – World speed record for a steam railway locomotive is set in England, by the Mallard, which reaches a speed of 125.88 miles per hour (202.58 km/h). |
| 75707 | July 3 | Event | 1938 – United States President Franklin D. Roosevelt dedicates the Eternal Light Peace Memorial and lights the eternal flame at Gettysburg Battlefield. |
| 75708 | July 3 | Event | 1940 – World War II: In order to stop the ships from falling into German hands the French fleet of the Atlantic based at Mers El Kébir, is bombarded by the British fleet, coming from Gibraltar, causing the loss of three battleships: Dunkerque, Provence an |
| 75709 | July 3 | Event | 1944 – World War II: Minsk is liberated from Nazi control by Soviet troops during Operation Bagration. |
| 75710 | July 3 | Event | 1952 – The Constitution of Puerto Rico is approved by the United States Congress. |
| 75711 | July 3 | Event | 1952 – The SS United States sets sail on her maiden voyage to Southampton. During the voyage, the ship takes the Blue Riband away from the RMS Queen Mary. |
| 75712 | July 3 | Event | 1967 – The Aden Emergency: The Battle of the Crater in which the British Argyll and Sutherland Highlanders retake the Crater district following the Arab Police Mutiny. |
| 75713 | July 3 | Event | 1969 – Space Race: The biggest explosion in the history of rocketry occurs when the Soviet N-1 rocket explodes and subsequently destroys its launchpad. |
| 75714 | July 3 | Event | 1970 – The Troubles: The "Falls Curfew" begins in Belfast, Northern Ireland. |
| 75715 | July 3 | Event | 1979 – U.S. President Jimmy Carter signs the first directive for secret aid to the opponents of the pro-Soviet regime in Kabul. |
| 75716 | July 3 | Event | 1988 – United States Navy warship USS Vincennes shoots down Iran Air Flight 655 over the Persian Gulf, killing all 290 people aboard. |
| 75717 | July 3 | Event | 1988 – The Fatih Sultan Mehmet Bridge in Istanbul, Turkey is completed, providing the second connection between the continents of Europe and Asia over the Bosphorus. |
| 75718 | July 3 | Event | 1995 – Saint Kitts and Nevis Labour Party wins the general elections and is restored to power after being in opposition for 15 years. |
| 75719 | July 3 | Event | 1996 – Stone of Scone is returned to Scotland. |
| 75720 | July 3 | Event | 2013 – Egyptian coup d'état: President of Egypt Mohamed Morsi is overthrown by the military after four days of protests all over the country calling for Morsi's resignation, to which he didn't respond. President of the Supreme Constitutional Court of Egyp |