The Germans form one of the most important branches of the Indo-Germanic or Aryan race—a division of the human family which also includes the Hindoos, Persians, Greeks, Romans, Celts, and the Slavonic tribes. The near relationship of all these, which have become so separated in their habits of life, forms of government and religious faith, in the course of many centuries, has been established by the evidence of common tradition, language, and physiological structure. The original home of the Aryan race appears to have been somewhere among the mountains and lofty table-lands of Central Asia. The word "Arya," meaning the high or the excellent, indicates their superiority over the neighboring races long before the beginning of history.