1328 - The Scottish Wars of Independence end: The Treaty of Edinburgh-Northampton leads the Kingdom of England to agree to recognize the Kingdom of Scotland as an independent state.
1794 - War of the Pyrenees: The Battle of Boulou ends, in which French forces defeat the Spanish and regain almost the land they had lost to Spain in 1793.
1947 - Porta della Ginestra massacre against people in May Day celebrations in Sicily by bandit and separatist leader Salvatore Giuliano, killing 11 people and wounding 33.