Although the study of electrical phenomena goes back to ancient times, it was not until Thomas Edison’s era that electrical currents could be sufficiently controlled to be used in homes.
Edison wasn't the first inventor to build a light bulb, but he developed the first electric-powered bulb that would actually stay lit and not burn itself out after a few minutes of use. He patented his invention in 1880 and soon afterward founded Edison General Electric.
Many other electric companies quickly sprang up across the U.S. and in Europe as the race was on to generate electricity and disseminate it to businesses and homes. Natural gas light fixtures and kerosene lamps were phased out as the electric networks grew.
This rapid growth also created a demand for a new profession — the electrician. Even today, the job of electrician can be dangerous and even deadly. In the early years there were not yet many safety features, so electrocution and fires were not uncommon.