Notebooks written by Charles Darwin, which were mysteriously returned to Cambridge University Library after going missing for 20 years, are going on public display.

Two of naturalist Charles Darwin's notebooks that were reported stolen from Cambridge University have been returned, two decades after they disappeared.

Last month, two of Charles Darwin's notebooks that had been missing from the Cambridge University Library for 20 years were returned.

LONDON — Two of naturalist Charles Darwin’s notebooks that were reported stolen from Cambridge University’s library have been returned, two decades after they disappeared.

Two of Charles Darwin's notebooks containing his pioneering ideas on evolution and his famous Tree of Life sketch have been returned anonymously after going missing for 21 years, Cambridge ...

Charles Darwin's notebooks, which included his original sketches and remarks, worth millions of pounds went missing in 2001. After 20 years they have been returned.

Notebooks detailing Darwin’s theories of evolution and natural selection were discovered missing during a routine check at the Cambridge University Library in January 2001.

Charles Darwin’s Notebooks B and C were returned to Cambridge University Library more than two decades after they went missing. (Stuart Roberts/Cambridge University Library) ...

The notebooks, which include Charles Darwin's famous 'Tree of Life' sketch, went missing in 2001 from the Cambridge University's library after being removed for photographing.