Крісло Чарльза Дарвіна на коліщатках

Charles Darwin's writing chair at Down House has casters. According to an English Heritage curator, Darwin adapted the chair to his height by raising it on cast-iron legs from an old bed; the casters let him move around his study. It is an interesting early example of a wheeled chair, but there is no basis for calling Darwin the inventor of the office chair as a whole.