How long did Ancient Egyptian history last 3,332 years 3,000 years 2,668 years

30 centuries  or 3,000 years

For almost 30 centuries from its unification around 3100 B.C. to its conquest by Alexander the Great in 332 B.C. Ancient Egypt was the preeminent civilization in the Mediterranean world.           hope i helped

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.