Electricity has always been observed through lightning, and electric eels have long been known to give off shocks. Thales of Miletus made observations of static electricity in 600 BC. William Gilbert studied (and named) it in the late 1500s.
water
yes
electicity
kilowatts
Thomas Edison
yes
yes
electron
Yes.
Yes, of course, what a dumb question.
They use fire
yesterday