The QWERTY keyboard, named for the top row of letters on its left-hand side, was designed to make life easy for the typewriter, not the typist.
The first practical typewriter was devised by an American inventor named Christopher Sholes in the late 1860s. The type, set in a round bin under the carriage, was susceptible to repeated jamming at typing speeds faster than “hunt-and-peck”. (Another unrelated difficulty was that type met paper on the underside of the cylinder, so the typist couldn’t read the completed document without lifting up the carriage.)
To resolve the jamming quandary, Sholes, who had initially configured the keyboard in alphabetical order, chose to place the most frequently used letters as far apart as possible in the machine’s guts. The very next year, 1873, Sholes sold the invention to the Remington gun company of New York State, and the QWERTY keyboard has been standard ever since.