Why do people study history?
choose all answers that are correct.
a.
it erases religious differences among nations.
b.
it tells us who we are and what it means to be part of our culture.
c.
it promotes a single, advanced world culture.
d.
it teaches us to learn from the past.

d. it adversely affected american productivity

where are the answer choices

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.

discrimination! they faced a lot of racism