In this stream, former AP® World History student Varoon Kodithala discusses major commercial transformations during the Post-Classical Period from 1200 CE to 1450 CE that worked to change the course of human history. Join Varoon for an informative stream discussing essential concepts in the AP® World History: Modern curriculum (i.e. the Silk Roads, bills of exchange, the formation of credit, and the Roman Catholic Church' permittance of usury).