Man has a long history of building ships. From pre-historic Mu Weizhou up, in the long period of human manufacture are the wooden boat using manpower or wind propulsion. In 1807, R. Fulton of the United States built the world's first steam-powered ship, which was propelled by paddle wheels. In 1879, the world's first steel ship was built. Since then, ships have entered an era dominated by steel ships and powered by machines. Since the 1950s, steam engines have been gradually replaced by steam turbines and diesel engines in Marine propulsion, and nuclear energy has been used as propulsion power. Due to the development of shipping and military needs, ships tend to be large-scale and specialized, and shipbuilding technology develops rapidly. Shipbuilding has become one of the most important heavy industry sectors in the world.
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