-
1700
Electricity has been a subject of scientific interest since at least the early 17th century. William Gilbert was a prominent early electrical scientist. ( "First" Electrician") -
1729
The English physicist Stephen Gray discovered electrical conductivity in 1729. -
1752
Benjamin Franklin proposes the notion of positive and negative charge -
1800
First electric battery by Alessandro Vlota. -
1827
In 1827, using equipment of his own creation, Georg Simon Ohm determined that the current that flows through a wire is proportional to its cross-sectional area and inversely proportional to its length or Ohm's law. -
19th Century
As electricity and electrical devices such as lighting systems became mainstream at the end of the 19th century, the demand for electricians to install, repair and maintain such devices and systems increased. -
19th Century
specialization emerged at the end of the 19th century: industrial, commercial and domestic. -
1876
On April 24, 1877 Charles F. Brush was issued U.S. Patent No. 189,997 for his arc lighting system -
1879
Thomas Alva Edison invented the lightbulb. (Everywhere could be illuminated now) -
1888
Heinrich Hertz discovers and measures the waves -
1888
Nikola Tesla invents the first practicable AC motor and polyphase power transmission system -
1904
Harvey Hubbell II patented the first detachable electric plug in the United States. (outlet) -
1939
Edwin Howard Armstrong developed FM radio receiver -
1951
First nuclear power plant in the US -
1963
Electronic calculator