The early Muslims greatly advanced knowledge in medicine and astronomy.
Muslims practice the Islam religion which is a monotheistic. The majority of Muslims follow the teachings and practices of Muhammad, their holly book is called the Quran.
At early times, the Muslim culture, from the Rashidun Caliphate to early Umayyad period, were Arab, Byzantine, Persian and Levantine. With the quick expansion of the Islamic empires, Muslim culture has influenced and embraced much from the Persian, Egyptian, Caucasian, Turkic, Mongol, South Asian, Malay, Somali, Berber, Indonesian, and Moro cultures.