Al Walid Ibn Abdul Malik built the first hospital in 706 A.D, Islam.
Islam was declared to human being by Abraham.
in year 566 mohammad was sent by god to lead people to islam in mekka city in saudi arebia
Islam was usually transmitted with a number of Arab cultural norms, such as the Arabic language, Arab merchantry, Arab values, Arab clothing, Arab artistry, and Arab social organization (tribalism). This modified most of the cultures under Arab hegemony and, in the case of the North African Amazigh, the Egyptian Copts, the Phoenicians, Arameans, Assyrians, Babylonians, and the Judeans, it led to such an erosion of their indigenous culture, that those among them that converted to Islam were said to have performed "Ta3arib" (تعريب) or Arabization. In the case of Spain, northern Spaniards noted how Christians in southern Spain took on many of these Arab affectations and called them mozárabes, which is the corruption of the Arabic "most3arab" (مستعرب) which is a derivative of "Ta3arib".
the 1st year of the Muslim calender
The word (Empire) did not apply in Islam. However, it was called (Khilafa, Caliphate). The greatest Muslim Caliphate (or Empire, if you like) was the Rashidun Caliphate, it began right after Mohammed's death 632 AD and ended (or renamed) in 661 AD. It extended from China in the east to Portugal in the west, and Armenia in the north to the horn of Africa in the south. it had the strongest and most organized both government ( led by Abu Bakr, then Omar, then Uthman then Ali) and army (commanded by the most famous Khalid Ibn al Walid on the Persian and Roman fronts. and Amr Ibn al Aas on the African front. then Tariq bin Zyad in Spain and Portugal. and many others)
The official religion is Islam.
610-1032 ad
Muhammad started teaching Islam religion in the year of 610 A.D
A person of any age can pray in Islam as long as they have good intent.
The message of Islam was revealed to him. He was at the age of 40 when it was first revealed to him in the cave of Hira in the year 610 C.E.
The Five-year plans originated in Soviet Russia in late 1920s and were later embraced by China, India and other countries.