User:Hawkeye7/War/Selected anniversaries/July 3
- 324 - Battle of Adrianople: Constantine I defeats Licinius, who flees to Byzantium
- 533 - Battle of Ad Decimum: Byzantine general Belisarius defeats the Vandals near Carthage.
- 1250 - Louis IX of France is captured by Baibars' Mamluk army at the Battle of Fariskur while he is in Egypt conducting the Seventh Crusade; he later has to ransom himself.
- 1778 - Prussia declares war on Austria.
- 1866 - Austro-Prussian War is decided at the Battle of Königgrätz, resulting in Prussia taking over as the prominent German nation from Austria.
- 1962 - The Algerian War of Independence against the French ends.