Conversation so far:
what were Charles Darwin's religious views?
Darwin's family tradition was nonconformist Unitarianism.
what does that mean?
his father and grandfather were freethinkers, and his baptism and boarding school were Church of England.
Are there any other interesting aspects about this article?
he was critical of the Bible as history, and wondered why all religions should not be equally valid.

Question: what did he do, due to these beliefs?
Self-contained rewrite: what did Charles Darwin do, due to his religious beliefs?