Explain the expanded role of advertising and consumer credit. why can it be said that the prosperity of the 1950s and 1960s was substantially consumer-driven?

It influenced consumer spending.  This encouraged people to go out and buy more products that they wanted.  Due to the postwar economic prosperity, many Americans had extra money to spend.  As a result producers launched a massive advertising campaign to encourage consumers to buy more.

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."

b. the 200th birthday of the united states