Which mongol ruler conquered china and established the largest land empire in history?

Do you believe that unity of purpose and belief are what made the american colonies strong, or do you believe that societies whose citizens were compelled to interact with people of differing beliefs were the most successful, based on the history

Which of the following statements is true about water access in the middle east? a. access to coastal waters is not important to people. b. most countries depend on outside resources for water. c. water is available in large supplies in all countries. d. all countries have sources of renewable freshwater.

Who introduced arabic numerals to italy, which make bookkeeping possible? a. brunelleschi b. cosimo de medici c. fibonacci d. gregory xi e. giovanni de bicci de medici