How an Old War Poster Lost for 60 Years Became a Modern-Day Sensation

The origin of the phrase "Keep calm and carry on" and its place in popular culture is traced in Temujin Doran's short film below, which has garnered almost a million YouTube views in less than a month. The text was originally commissioned for British propaganda posters during World War II, though relatively few copies were produced. The slogan was all but forgotten until one of the posters turned up about a dozen years ago in a box of volumes bought by Barter Books, a large antiquarian bookshop in northern England.