Question

How did humans got to know about the magnetic?

Answer 1

There was a shepherd.Once he went to a hill with his sheeps and he had a stick with him which had iron piece on the end. it got stuck with a rock which lead to the discovery of magnet.
Hope this answer helped
Thanks

Answer 2

Answer:

An understanding of the relationship between electricity and magnetism began in 1819 with work by Hans Christian Ørsted, a professor at the University of Copenhagen, who discovered by the accidental twitching of a compass needle near a wire that an electric current could create a magnetic field.