Kim Il-sung to speaking to communist party members to energize the workers in North Korea.

Propaganda photograph of Kim Il-sung to speaking to communist party members to energize the workers in North Korea to bring the country out of the rubble of the Korean War to obtain a better life and a more prosperous country in a short amount of time. Kim Il-sung first introduced the term Chollima in December 1956, shortly before the start of the 1957-61 five-year plan. (Photo by: Universal History Archive/Universal Images Group via Getty Images)