Who made the Flemings right hand rule?

Fleming's right-hand rule was formulated by British engineer John Ambrose Fleming in the early 20th century. It is a mnemonic used to determine the direction of induced current in a conductor moving through a magnetic field. The rule states that if you align your thumb, index finger, and middle finger of your right hand perpendicular to each other, the thumb points in the direction of motion, the index finger in the direction of the magnetic field, and the middle finger in the direction of the induced current.