Digitising every page of every edition of the Guardian since its launch in 1821 up to the 1970s, along with thousands of editions of the Observer - about 900,000 pages in all.

“A newspaper today might be full of bullshit,” says Yoni Stern, “but it’s all a part of the history of culture - the bullshit, too, no less than the reality. You can’t get that from history books.”