Their religion, women, children and beliefs play an important role in the culture. Islam is the religion that claims the identification of the vast majority of the Iraqi population with Arab culture. The second largest cultural group is the Kurds, who live in the northern highlands and mountain valleys in a politically autonomous settlement. The Kurds occupy the provinces of As Sulaymaniyah, Dahuk and Irbil, the area of ​​which is called Kurdistan. Nearly all Iraqis speak, read and write their official language, Arabic. As in Kurdistan, they speak Kurdish so they can distinguish between Iraqis and Kurds. There are five pillars of Islam: praise of Allah as the only God, with Muhammad as his prophet, prayer five times a day, almsgiving, fasting and pilgrimage to Mecca. Ramadan falls in the ninth month of the Muslim calendar. This month consists of a period of fasting from all food, drink, and activities such as smoking and sexual intercourse during daylight hours. At night fasting is no longer necessary, in other words you can do what you cannot do at night