Islamic culture is a term primarily used in secular academia to describe the cultural practices common to historically Islamic people. The early forms of Muslim culture were predominantly Arab. With the rapid expansion of the Islamic empires, Muslim culture has influenced and assimilated much from the Persian, Caucasian, Bangladeshi, Turkic, Mongol, Chinese, Indian, Malay, Somali, Berber, Egyptian, Indonesian, Filipino, Greco-Roman Byzantine, Spanish, Sicilian, Balkanic and Western cultures.