More than a billion Muslims around the world observe Ramadan (?month of blessing?), with prayer, fasting and charity. They celebrate the end of Ramadan with a three-day festival, called Eid al-Fitr, which means ?breaking of the fast.? It's one of the most important holidays in Islam. (Islam is the name of the religion practiced by Muslims.) During Eid al-Fitr, people dress in their finest clothes, adorn their homes with lights and decorations, give treats to children and visit with friends and family.