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who invented the first gym
who invented the first gum
who invented the first game
who invented the first gaming console
who invented the first gaming pc
who invented the first gaming system
who invented the first gun
who invented the first microscope
who invented the first system of writing
who invented the first mechanical clock
who invented the first steam engine
who invented the first smartphone
who invented the first mechanical computer
who invented the first mobile phone
who invented the first gym, who invented the first gum, who invented the first game, who invented the first gaming console, who invented the first gaming pc, who invented the first gaming system, who invented the first gun, who invented the first microscope, who invented the first system of writing, who invented the first mechanical clock, who invented the first steam engine, who invented the first smartphone, who invented the first mechanical computer, who invented the first mobile phone
