In 1874 Major Walter Clopton Wingfield, a British Army officer, designed and patented his own version of the sport and made it portable so that people could carry all the equipment: net, ball and racquet, along with an instruction booklet. Major Wingfield called his version of the sport "Sphairistike" (a Greek word meaning "ball game"). Later the name changed to "Sticky" and then to its more descriptive name, "Lawn Tennis." Soon manufacturers began producing their own portable tennis sets.