The earliest appearance of elevators can be traced back to ancient China and various European countries, where people and goods were transported vertically using tools such as pulleys. Modern elevators are a product of the invention of the steam engine in the 19th century.1845Year, the first one Elevators were born with water as the liquid used at that time.1853In, American Elisa Otis invented an automatic safety device, greatly improving the safety of steel cable traction elevators.
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