Ronald reagan ran against in the 1980 presidential election.
a. walter mondale
b. gerald ford
c. jimmy carter

b) race riots in several cities

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."