In 1820, a paper was published by the Danish scientist Hans Christian Oersted, which proved for the first time the link between electricity and magnetism.
Oersted's discovery inspired two great scientists, André-Marie Ampère and Michael Faraday, to produce their greatest work.
Ampère was first to make his mark. A complete theory of electrodynamics was quickly produced, which led to Ampère being christened the 'Newton of Electricity'. Faraday's first work on electromagnetism was less successful. He discovered electromagnetic rotation in 1821, but the publication of his results was overshadowed by a row over plagiarism.
It wasn't until 1831 that Faraday was able to publish his famous account of electromagnetic induction, showing that a magnet could induce an electric current, thus laying the foundations for electricity generation.