Citations › Citation ID: 18

C18. BOOK: Daniel Konstanski, The Secret Life of LEGO Bricks: The Inside Story of a Design Icon (Unbound, 2022), p. 66.

... the need for heads to sit in the centre of a 1x2 brick, as was the case in many of those early experiments, was the inspiration for jumper plates, where a single stud is placed in the center of a 1x2. Jumper plates would make their debut a few years later in 1978 as a happy accidental byproduct of creating minifigures.

The jumper plate was inspired by the need to attach a head in the middle of a 1x2 brick when developing the Minifigure.