Hundreds of thousands of pages of diaries from units from the First World War have been digitised and will be available to read online today.
The National Archives is publishing the first batch of unit diaries from France and Flanders as part of the organisations centenary programme.
The organisation is hoping that "citizen historians" will read the diaries to unearth new discoveries about life at war.
More top news
High pressure means water is boiling at 101C instead of 100C, making a stronger cuppa.
He said Boris Johnson would need to "make Scotland feel that they are a much bigger part" of the UK, if he is to unify the country.
Calm & dry but feeling cold after a freezing frosty