The first artificial wind-chill methods as used by animals in nature was duplicated by royalty and wealthy persons of early Assyria and Egypt, who employed slaves or servants waving large leaves to cool them down on hot days. Many centuries later, in 1882, Diehl introduced his invention of the electric ceiling fan. His device was a bubble-blade adaptation of the well known belt driven fan with an in-built electric motor. By the end of the 1880s, the