when was electricity discovered

when was electricity discovered
 The history of electricity began with the inventor William Gilbert, the physician who served Queen Elizabeth I in England
 where what was known about electricity before William Gilbert was that the stone possessed magnetic properties and that the rubbing of amber and emitter would attract parts of things to begin 
the adhesion phase and inspired by William Gilbert Many European inventors such as Otto von 
Grecke of Germany, Charles François de Fei of France, and Steven Gray of England expanded the 
scope of knowledge, until Thomas Edison discovered the light bulb
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