Keep Calm and Carry On was a propaganda poster produced by the British government in 1939 during the beginning of the Second World War, intended to raise the morale of the British public in the event of a Nazi invasion of Great Britain. It had only limited distribution with no public display, and thus was little known. The poster was rediscovered in 2000 and has been re-issued by a number of private companies and used as the decorative theme for a range of products, and an amazing number of funny posts shared on social networking sites.