What impact did the Dustbowl have on migration? From what areas did people leave and for what destinations?

Taught and wrote on a staggering array of subjects, including physics, chemistry, astronomy, ethics, politics, and literature

What was one striking development of the golden age of prehistory?

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?