"In American terms, the accomplishment of Genghis Khan might be understood if the United States, instead of being created by a group of educated merchants or wealthy planters, had been founded by one of its illiterate slaves, who, by sheer force of personality, charisma, and determination, liberated America from foreign rule, united the people, created an alphabet, wrote the constitution, established universal religious freedom, invented a new system of warfare, marched an army from Canada to Brazil, and opened roads of commerce in a free-trade zone that stretched across the continents."