Al-Andalus referred to Muslim Iberia between the 8th and 15th centuries. The main economic activities were agriculture, stockbreeding, trading and crafting. Cities had walls, narrow streets, fortified palaces, mosques, markets and sewer systems. Early on, Muslims, Christians and Jews coexisted peacefully but religious intolerance increased later. After the battle of Las Navas de Tolosa in 1212, the Nasrid Kingdom of Granada was the last remnant of Al-Andalus, falling to the Catholic Monarchs in 1492.