Genghis Khan was Mongolian, which is a separate group from Chinese. Mongolians are related to Turkic ethnic groups. read more
Genghis Khan's grandson Berke converted to Islam due to the efforts of Saif ud-Din Dervish, a dervish from Khorazm, thus Berke became one of the first Mongol rulers to convert. Other Mongol leaders owed their conversion to Islam due to the influence of a Muslim wife. read more
Genghis Khan was born by the name Timujin and was a Shamanist a form of Bhuddism and at that time it was a tribal religion but he later converted to Islam and change his name to Genghis Khan but he converted to Islam later in his life to near his time of death so their is not enough history with him on Islam but his grandson Berke Khan and all the succesors after him was the one who converted the entire Nomadic region to Islam according to Islamic history. read more