The Battle of Crécy gave Edward III of England a major victory over France in 1346 during the Hundred Years' War. It was fought on 26 August near Crécy-en-Ponthieu in northern France.
The English army occupied a strong defensive position and used large numbers of longbowmen. French attacks were badly coordinated, and English archery disrupted the advance of French cavalry and infantry. King Philip VI of France escaped, but many important French nobles were killed.
Crécy is often presented as proof that longbows simply made armored knights obsolete. That is too simple: terrain, organization, tactics, exhaustion, and command decisions were also important. The victory helped Edward capture Calais in 1347, giving England a strategically valuable port.