One of the most interesting things in the history of electricity is that innovations in the development of electrical equipment often occurred simultaneously around the world. As a result, there are some significant differences found among electrical outlets and plugs in America and many European countries.
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Differences between American and European plugs
Most of the differences between the American and European plugs are related to the design, but some are related to the current strength, as the countries differ in the used voltage power in the network. The American standard is from 110 to 120 volts, while the European standard is 220-240 volts. American tourists can often find that their hairdryer, tongs, kettle and other items do not work in Europe due to inadequate American plugs for European outlets.
Harvey Hubble American Fork
The first American electric plug was invented and patented in 1904 by Harvey Hubble. It consisted of a connector into which the cartridge was screwed in with the help of blades. Other manufacturers adopted the Hubble design, and therefore by 1915 such electric plugs were widely used by all consumers.