The Origin of Species
From RationalWiki
The Origin of Species is a "book" written by naturalist Charles Darwin, published in 1859.
The title of this article is how the book is usually referred to, however the full title is "On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life".
In a nutshell, it says "you are a monkey, and so am I".
The book spends several chapters countering concerns and criticisms offered by the many people Darwin discussed his theories with prior to publication.
Many fundamentalist religious people are highly offended by the concepts presented in the book, and the science of evolution that has developed since its publication. This is because it is obvious to them that it is easier to make people from dirt than from other living things.

