What was the difference between the Islamic slave trade and the Atlantic slave trade? PLEASE HELP AND HURRY

Islamic slave trade started in the medieval period up until the 20th century, whereas the Atlantic slave trade started from the 16th centurey,  and stopped in the 19th century.

Explanation:

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.