Pakistan emerged on the world map as an independent sovereign state in August 1947, as a result of the division of the British Indian Empire. With a land area of 796,095 sq. km. [including FATA (Federal Administered Tribal Areas) and FANA (Federal Administered Northern Areas)], its population stands at nearly 130.60 million, according to the 1998 Census. Historically, this is one of the most ancient lands known to man. Its cities flourished before Babylon was built; its people practiced the art of good living and citizenship before the celebrated ancient Greeks. The region traces its history back to at least 2,500 years before Christ, when a highly developed civilization flourished in the Indus Valley. Excavations at Harappa, Mohenjodaro and Kot Diji have brought to light evidence of an advanced civilization flourishing here even in most ancient times. Around 1,500 B.C. the Aryans conquered this region and slowly pushed the Hindu inhabitants further east, towards the Ganges Valley. Later, the Persians occupied the northern regions in 5th century B.C. The Greeks came in 327 B.C., under Alexander of Macedonia, and ran through the region like a meteor. In 712 A.D. the Arabs, led by Mohammed Bin Qasim, landed somewhere near what is now Karachi, and ruled the lower half of Pakistan for two hundred years. During this time Islam took root and influenced the life, culture and traditions of the inhabitants of the region.