The history of the evolutionary tree of life, from Greek philosophers to twenty-first-century scientists, gives insights into the theory’s origin and transition through Western civilization.
While approaches have been diverse, elements progressing into increasing complexity over time are a constant theme.
Porphyry (234–305 BC), a third-century Greek philosopher, composed the first known tree of life in his work entitled Isagoge while living in Sicily. Isagoge is an “Introduction” Porphyry edited into Aristotle‘s (384–322 BC) text known as Categories.
Charles Darwin started the debate over where humans originated. In the 19th century, most evolution scientists believed humans originated in Asia–the Out-of-Asia model. In the 6th Edition of The Origin of Species (1872), while Darwin mentions “humans” ten times, he never discusses the origin of humans.
Darwin, Then and Now, the Most Amazing Story in the History of Science, chronicles Darwin's life, how he developed his hypothesis, specifically what he said, and what scientists have discovered since the publication of The Origin of Species in 1859.
The book traces the rise and fall of evolution's popularity as a scientifically valid theory. With over 1,000 references from Darwin and scientists, Darwin Then and Now retraces developments in the most amazing story in the history of science.
Darwin Then and Now is an educational resource focusing on understanding the intersection of evolution and science to develop basic skills for analyzing and assessing the theory of biological evolution.