Primitive man used simple machines such as the lever, the inclined plane, the pulley, the wedge, and the wheel and axle.
(Primitive man; used; simple machines such as the lever, the inclined plane, the pulley, the wedge, and the wheel and axle)
Primitive man
used
simple machines such as the lever, the inclined plane, the pulley, the wedge, and the wheel and axle