How de US wain travel change by 1870 A. People could finally travel by train te
Chicago, Illinois

B. People could Knally travel by train across the
entire country

C. People could finally travel by train to Oregon

B people could finally travel by traim across the entire country

Explanation:

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

c) troops march forward in close formation against newer, more accurate weapons