Using Felipe Fernndez-Armesto, The World: A History (Penguin Academics, 2011). (The 3rd edition is currently in print, earlier editions are fine.) Answer the following two questions. 1. What changes did Temujin bring to Mongol society? How did these changes enhance his control of the steppes and the Mongol ability to expand? 2. What were the main vectors for the spread of the plague? What do these pathways tell us about the nature of the disease(s) known as the plague?