The document discusses the 5th Crusade that took place in Egypt from 1217-1221. It notes that the Crusade ended in 1221, over 200 years before the birth of Leonardo Da Vinci and the start of the Italian Renaissance. It describes the Battle of Damietta that occurred during the Crusade on the Nile River in Egypt in 1218. It also mentions that Saint Francis of Assisi had an audience with Sultan Al-Kamil during the Crusade. The document suggests that the 5th Crusade served as a prelude to the Renaissance in Italy.