150 years of Guardian/Observer now online

Fans of history of science (and history in general) take note: more than 150 years of Guardian and Observer back copies are now available online. The new searchable digital archive dates back to 1821 and thus encompasses Charles Darwin's entire career, pre-Beagle through his death in 1882 and beyond.

The archive is available as an online subscription service, but throughout this month (November 2007), they are offering a free 24-hour pass. In one short hour of searching, I discovered a clutch of deliciously historic articles including this 1971 piece about the filming of "The Darwin Adventure" (1972)...