the byzantine empire influenced the development of russia because there were very close trading ties between the two. the russians came in contact with christianity through the byzantine empire and eventually came to embrace eastern orthodox christianity.
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in the war, both sides used african americans for military purposes; in the south as slave labor and in the north as wage labor and military volunteers. over 100,000 ex-slaves fought for the union and over 500,000 fled their plantations for union lines.