Muslims around the world end the month-long observation of Ramadan each year with Eid-al-Fitr, a joyous celebration, during which they give food, money, and other gifts to the poor (one of the five pillars of Islam), pray, dress in finery, visit friends and relatives, and feast. The actual date of the celebration is decided by the sighting of the crescent moon, marking the start of the 10th month of the Islamic calendar.