Evolution [first draft, needs tightening]

• The BBC reports on the release of Charles Darwin's early papers.

Papers which led to Charles Darwin's theory of evolution were previously only available to scholars at Cambridge University's library.

The draft notes are among 20,000 archive items created by the 19th Century naturalist during his lifetime.

Dr John van Wyhe, a Darwin specialist at Cambridge University, said: "He changed our understanding of nature."