Carl Ritter was a German geographer born in 1779 who is considered one of the founders of modern geography along with Alexander von Humboldt. Over the course of his life, Ritter published 19 volumes consisting of over 20,000 pages of his major work "Die Erdkunde", intended as a complete geography of the world. In this work, Ritter treated geographical features as organs in the human body and described how the features of a place affected the history of its inhabitants. He emphasized empirical, observational, and comparative methods and is seen as pioneering the fields of environmental determinism and human-environment relationships in geography.