 Although Europeans eventually developed a similar design, this method of transportation did not exist until 1595 when an unknown inventor from Spain built one for King Phillip II.Although it was an elaborate chair having both armrests and leg rests, the design still had shortcomings since it did not feature an efficient propulsion mechanism and thus, requires assistance to propel it.This makes the design more of a modern-day highchair or portable throne for the wealthy rather than a modern-day wheelchair for the disabled.