The Battle of Roncevaux Pass AD 778
At school in France, after Vercingetorix one skips on to Charlemagne and the Chanson de Roland. The song commemorates the fight between Charlemagne, the good Christian king, and Spain, and is the 'first' great work of literature in French. Roland himself died on the 15th of August 778 during the Battle of Roncevaux Pass against the Basques. Ironically, given that the Muslims of Spain were the enemy, this battle was fought between two rival Christian rulers.