Video report from the BBC includes a look at the scanning process.
Uncovering the hidden history behind an event like World War I usually means trawling through thousands of records at a library.
But a £1m project underway in Aberystwyth, Ceredigion, will make all that available at the click of a mouse.
The National Library of Wales is busy digitising records into an online collection.
Watch the Video
Runs 2 minutes.
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