....During the 18th & 19th centuries, many inventors tried to develop an accurate, inexpensive, and easy-to-use typewriter. Then, in 1867, three American inventors from Milwaukee succeeded. The first practical typewriter was patented in 1868 by Christopher L. Sholes, Carlos Glidden, and Samuel W. Soule.
....Sholes developed a greatly improved version of the typewriter, then joined with James Densmore to manufacture and sell the new machine. E. Remington and Sons, the gun manufacturer, bought the manufacturing rights from Sholes and Densmore in 1873.
....Once the Remington typewriter became popular, other firms began manufacturing similar machines. Portable typewriters hit the market in the early 1900s, and electric typewriters appeared in the 1920s.
....During the typewriter's heyday, manufacturers produced over 5,000 types of keyboards with specialized features such as letters and symbols for different languages, music symbols, or braille.