Hans Christian Ørsted discovered the relationship of electric current to magnetism.
Electromagnetism was discovered, per se, by James Clark Maxwell. He was the first to say that positive and negative charges were regulated by one force.
induction
faraday faraday
Issac Newton
William Sturgeon was the first inventor to create electromagnets. He was an English inventor who lived from 1783 to 1850 CE.
Michael Faraday did not invent or discover electromagnetism. After Hans Christian Oersted discovered it he simply studied it more.
Bohr &Stoner suggested aufbau principle
Hans Christian Oersted (1777-1851) of Denmark discovered electromagnetism in 1819.
Hans Oersted discovered Electro- Magnetic Induction in 1820
Hans Christian Oersted was the first to demonstrate the relationship between electricity and magnetism in 1820 when he discovered that an electric current can create a magnetic field. This discovery laid the foundation for the development of electromagnetism.
It is believed that the principle "like dissolves like" was first proposed by the German chemist Hermann Sprengel in the 19th century. He observed that substances with similar polarity or solubility tend to dissolve in each other.
The principle of the generator was discovered by Michael Faraday, an English scientist, in the early 19th century. Faraday's experiments with electromagnetic induction led to the development of the first electric generator, which laid the foundation for modern electrical technology.