Jesuit missionaries to Chiloé Island, charged with the evangelization of the local population arrived on Chiloé at the turn of the 17th Century and built a number of chapels throughout the archipelago. By 1767 there were already 79 and today more than 150 wooden churches built in traditional style can be found on the islands, many of these declared World Heritage Sites by UNESCO. Following the expulsion of the Jesuits in 1767, the Franciscans assumed responsibility for the religious mission to Chiloé from 1771.