Qatar is a Muslim-majority country with Islam

Islam

Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

 as the state religion. The local population, made up of Qataris, are all Muslims although there are high numbers of foreign workers in Qatar which varies the Muslim population. In the CIA World Factbook it says 77.5% are Muslims, with 8.5% Christians and others remain. Foreign workers are well noted in the country, mainly from South Asia

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 and Americans

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 which constitute most of the population of Qatar.

Islam

Islam

Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

 conquered the entire Arabian region in the 7th century in a string of widespread conflicts resulting in the Islamization

Islamization

Islamization or Islamification has been used to describe the process of a society's conversion to the religion of Islam...

 of the native Arabian pagans. With the spread of Islam in Qatar, the prophet Muhammad

Muhammad

Muhammad |ligature]] at U+FDF4 ;Arabic pronunciation varies regionally; the first vowel ranges from ~~; the second and the last vowel: ~~~. There are dialects which have no stress. In Egypt, it is pronounced not in religious contexts...

sent his first military envoy, Al Ala Al-Hadrami, to Al-Mundhir Ibn Sawa Al-Tamimi, the ruler of Bahrain, which extended from the coast of Kuwait to the south of Qatar, including Al-Hasa and Bahrain Islands, in the year 628, inviting him to accept Islam as he had invited other kingdoms and empires of his time such as Byzantium and Persia. Mundhir, responding to Muhammad, announced his acceptance of Islam, and all the inhabitants of Qatar became Muslim, heralding the beginning of the Islamic era in Qatar.