Iowa: 3.1%. According to our research of Iowa and other state lists there were 2 registered sex offenders living in Aurora, Iowa as of September 06, 2015. The ratio of number of residents in Aurora to the number of sex offenders is 86 to 1.
William G. Sumner, who coined the term ethnocentrism, is famously known as America's first sociology professor. He taught social sciences at the Yale University. It is wondrous, really, how this world is made up of so many different people belonging to different races or ethnicities.
However, in the early 1800s, Georges Cuvier (1768â1832), the famous French comparative anatomist and vertebrate paleontologist, developed his catastrophist theory of earth history. It was expressed most clearly in his Discourse on the Revolutions of the Surface of the Globe (1812).