Keep Calm

The original Keep Calm and Carry On motivational poster was published by the British Government in 1939 in preparation for the WW II.  As many as 2.5 million copies were reportedly printed, but were not widely distributed, and later some were destroyed and re-pulped during the Paper Salvage campaign.  Not until 2000, when a small quantity of the original posters was discovered by a couple of booksellers, the Keep Calm design became popular again.  The Keep Calm theme has since been adapted in many variations and languages.