XXXI ROME COMES INTO HISTORY The reader will note a general similarity in the history of all these civilizations in spite of the effectual separation caused by the great barriers of the Indian north-west frontier and of the mountain masses of Central Asia and further India. First for thousands of years the heliolithic culture spread over all the warm and fertile river valleys of the old world and developed a temple system and priest rulers about its sacrificial traditions. Apparently its first makers were always those brunette peoples we have spoken of as the central race of mankind. Then the