The document discusses the expansion of nomadic groups like the Mongols across Eurasia between the 7th and 13th centuries. It summarizes that the Mongols, led by Chinggis Khan, were able to build a vast empire through their mobile warfare and siege tactics supported by cavalry and archery. Though the direct Mongol rule declined by the 1330s, their conquests had opened trade routes and facilitated the spread of plague across Afro-Eurasia, contributing to the fall of classical empires and the rise of gunpowder empires afterward.

1. Nomads and Mongols: Did Nomadic expansion improve the Eurasian world? AP World History Richard Smart Oakland Mills High School