What impacted the different characteristics of the Greek city-states?

Over time, who did the nature of slavery change in america

How did women’s roles in the workforce change during world war i?

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world