How was islam able to cross the sahara desert in the 18th century?
a. at the time, the sahara desert was smaller and less harsh than it is today
b. african slaves escaping from there arab owners brought islam home with them
c. a muslim army went south to conquer african kingdoms in ghana and sudan
d. muslim merchants from north africa followed trading routes through the sahara desert

Which of the following is an effect that constantine's conversion to christianity had on the roman empire?

Why was "impressment" an important issue during the jefferson administration? the united states was being treated disrespectfully, as the spanish navy was forcing american sailors into naval service for them. the united states was being treated disrespectfully, as the french navy was forcing american sailors into naval service for them. the united states was treating british navy with disrespect by forcing british sailors into naval service for them. the united states was being treated with disrespect on the high seas, as the british navy was forcing american sailors off their ships and into naval service for them. the united states was treating french navy with disrespect by forcing french sailors into naval service for them.

What were the advantages and dis- advantages of how britain and france ruled in africa?