In the era before air conditioning, oscillating metal fans were among the most sold electric appliances. In 1882, Dr. Schyler Wheeler developed the first 2-blade electric desk fan, literally blades attached to a motor with no safety features. Through the years, fans grew in safety by enclosing the motor & caging the blades. In the 1920’s, refrigerated air was beginning to be used in commercial spaces. Oscillating fans started to be marketed for residential use. The 1950s saw a growth in air-conditioning for private homes and fans became less popular. Cost-cutting resulted using nylon instead of brass or steal. The 1960s saw the last of the well-made fans.