Original: Silent bartering was mainly used during 500 to 1500 A.D. Procedure To perform a silent barter , one group of traders would go to a specific location , leave their trading goods and then withdraw to a distance .
Simplified: Silent bartering was mainly used during 500 A.D to 1500 A.D. To do a silent barter , one group of traders would go to a certain location , leaving whatever they are offering to trade .