Pax Mongolica, facilitated trade east to west, courier network, first “passports,” trade was safe, diplomatic/missionary efforts, FOSTERED CONNECTION (gold brocade, blue-dyed porcelain), REVIVED Silk Roads, GUNPOWDER, cosmpolitan, supported diversity, first introduces paper money, inspires Marco Polo/Europe, left internal politics alone when they conquered, science and learning spread and prosper, largest continuous land empire, tolerant, supported economic expansion (connection like Persia-China, silk, etc), communication