During the bronze age, farmers were more easily able to trade surplus goods because of which technological advancement? a. paper currency b. balance scales c. metal plows d. irrigation

What was the earliest settlement shown on the map?

What industry was exempt from the child-labor laws passed in the factory act of 1833?

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?