What better way to mark the occasion than a trip to the Old Library, where a first edition of On the origin of species (1859) together with an autograph letter from Darwin to his cousin William Darwin Fox are on display as part of the Treasures of the Old Library exhibition.

Charles Darwin's Letter to William Darwin Fox, 30 June 1828. Christ's College, MS Fox 116.

The Old Library is open to visitors on Tuesdays, Wednesdays and Thursdays, 2pm to 4pm.

Alternatively, you can explore the exhibition online.