Genghis Khan was he a Caucasian?
According to a number of historical sources, Genghis Khan and his offspring were Caucasians. For instance, Rashid Al-Din, an ancient historian, asserts that he had red hair and green eyes. There isn't any solid proof that Genghis Khan was Caucasian, though.
Persians were also recognised as innovators in the fields of refrigeration, cooling, and ventilation.