Millions of documents stored at the World War II code-breaking centre, Bletchley Park, are set to be digitised and made available online.
Electronics company Hewlett-Packard has donated a number of scanners to the centre in Milton Keynes so volunteers can begin the ground-breaking task.
Many of the records at the once-secret centre have not been touched for years.
During the war, it was home to more than 10,000 men and women who decoded encrypted German messages.
The centre hopes that once the work starts, previously untold stories about the role Bletchley Park played in the war, will be revealed.