Prior to the 20th century, the largest intercontinental migration of people in history was
colonial management from the motherland moving to the colonies
mongols expanding their empire
the atlantic slave trade
nomads seeking fields for their herds

i think the answer is b.

george calvert wanted maryland to be a colony where could live safely. because georgia's founders wanted a colony of small farms rather than large plantations, they originally banned under british law in the 1700s, people who owed money could be