Wikipedia:Selected anniversaries/May 27
May 27: Lag Ba'omer in Judaism (2005)
- 1328 - Philip VI of France was crowned at Notre-Dame de Reims, beginning the Valois Dynasty.
- 1860 - Italian unification: Giuseppe Garibaldi and his Redshirts launched their attack on Palermo, capital of the Two Sicilies.
- 1919 - The flying boat NC-4 arrived in Lisbon, Portugal, becoming the first aircraft to complete a transatlantic flight.
- 1923 - The first 24 heures du Mans sports car endurance race was held in Le Mans, France.
- 1999 - Slobodan Milošević was indicted for war crimes and crimes against humanity committed in Kosovo.