Keep Calm and Carry On was a motivational poster produced by the British government in preparation for World War II. It was designed in the period of 27 June to 6 July 1939. Almost 2,500,000 copies of were printed between 23 August and 3 September 1939. But the poster was not sanctioned for immediate public display. In 2000, Stuart Manley designed coffee cups with these posters and sold.
While other companies followed suit, and the design rapidly used as the theme for a wide range of products. As the popularity of the poster in various media has grown, innumerable parodies, imitations, and co-optations have also appeared, making it a notable meme. From cute messages to video games the designs have been evolved.