Battle of Crécy-en-Ponthieu: during the Hundred Years’ War. It was a great success for English longbows, but also the first limited use of cannons, and firearms in general, by European armies. The English Earls of Derby and Salisbury happened to be present six years earlier in Spain at the Battle of Tarifa, where the Arabs used cannons against the Spanish. Impressed by what they saw, upon their return home they had cannons introduced into their armies.
