Okay so my cousin has an ancient civilizations project and asked me for well he needs info on mesopotamia, ancient china, and ancient india. there is a list of items he must include. the list is: tigris river indus river huang he river euphrates river yellow river red sea himalayan mountains "land between 2 rivers" fertile crescent silk road cotton papyrus silk spices pottery code of hammurabi sumerian city-state cuneiform calendar mohenjo-daro harappa monsoon winds caste system "river of sorrows" compass oracle bones paper sanskrit number system !