The Constitution provides for freedom of belief and the practice of religion; however, the Government places restrictions on this right. According to the Constitution, Islam is the official state religion, and Shari'a is the primary source of legislation; religious practices that conflict with the official interpretation of Shari'a are prohibited. However, since the Government does not consider the practice of Christianity or Judaism to conflict with Shari'a, for the most part members of the non-Muslim minority worship without legal harassment and may maintain links with coreligionists in other countries. Members of other religions that are not recognized by the Government, such as the Baha'i Faith, may experience personal and collective hardship.
Egypt's excess of natural gas will more than meet its domestic demand for many years to come. The Ministry of Petroleum has established expanding the Egyptian petrochemical industry and increasing exports of natural gas as its most significant strategic objectives.
The 20th century has seen Cairo become associated with a roots revival. Musicians from across the Arab world have kept folk traditions alive, while Nubians, Saiyidis and Bedouins have established their own scenes. New varieties of folk and pop have also arisen from the Cairo hit factory
The Egyptians also expanded the practice of mummification to animals. Sacred animals central to cults, such as ibis, hawks, and cats, were mummified by the thousands.
The Egyptians are a fairly homogeneous people. Mediterranean and Arab influences appear in the north, and there is some mixing in the south with the Nubians of northern Sudan. Many theories has been proposed on the origins of the Egyptians, however non are conclusive, and the most widely accepted theory is that Egyptian society was the result of a mix of east african and asiatic people who moved to the Nile Valley after the ice age. The bulk of Modern Egyptian society still maintains a homogenous genetic tie to the ancient Egyptian society which has always been regarded as rural and most populous compared to the neighboring demographics. The Egyptian people spoke only languages from the Afro-Asiatic family (previously known as Hamito-semitic) throughout their history starting with Old Egyptian, to modern Arabic.
Egypt's vast and rich literature constitutes an important cultural element in the life of the country and in the Arab world as a whole. Egyptian novelists and poets were among the first to experiment with modern styles of Arabic literature, and the forms they developed have been widely imitated. Egyptian novelist Naguib Mahfouz was the first Arab to win the Nobel Prize in Literature. Egyptian books and films are available throughout the Middle East.