In what way did the Romans affect the Sahara trade?

The Garamantes provided the Romans with foodstuffs, exotic Sub-Saharan slaves & possibly textiles, salt, gold & ivory in exchange for Roman wine, olive oil & pottery. ... Although a large amount of Sub-Saharan goods made it to the Mediterranean, Mediterranean goods did not reach the Sub-Sahara in the same volume.

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.