CK-12 Foundation
Ck 12: Biology: Influences on Darwin
[Free Registration/Login may be required to access all resource tools.] Discusses how early thinkers influenced Darwin's development of evolutionary theory.
National Center for Ecological Analysis and Synthesis, University of California Santa Barbara
Nceas: Charles Lyell
This site from the University Of California Santa Barbara provides a brief description of Charles Lyell's ideas concerning the geology of the Earth and several links to famous people related to this topic.
Curated OER
Physical geography.net: Concept of Uniformitarianism
This fundamentals of physical geography site provides a good overview of this early theory on the development landforms and the scientists that were involved in its conception.