starting around 3500 bc in ancient mesopotamia with the sumerian kings , considered the first civilization , to the akkadian empire , which lasted from 2300 bc to 2200 bc , or the babylonian empire between 1728 bc to 1531 bc , all the way up to the beginning of the ottoman empire in 1533 bc and its end in 1918 ad , which led to the rise of the kingdom of iraq in 1932 , and a good place for chad to resume todays lesson .