Trans-Saharan Trade in Africa was initiated by the Romans after their introduction of the camel to North Africa. The Romans introduced the camel to North Africa in about 200, and in doing so unwittingly revolutionized trans-Saharan trade. North African Berbers and other residents of the central Sahara quickly adopted the use of camels, both as a source of food and as a means of transport. Where trade across the desert had formerly been sporadic, moving haltingly from oasis to oasis, it was now possible to take a camel caravan on a two-month journey directly across the Sahara. Trade and contact between the Mediterranean world and sub-Saharan West Africa flourished. Major traded commodities included horses, weapons, and textiles from the Mediterranean; gold, slaves, and animal products from West Africa; and salt mined from dried-up prehistoric lakes in the central Sahara. Trans-Saharan Trade in Africa however got some spikes after the introduction of camel to Africa.