english: In the 19th century, Maxwell figured out that you can't explain electromagnetic phenomena in terms of the existing fundamentals — space, time, mass, Newton's laws — so he postulated fundamental laws of electromagnetism and postulated electric charge as a fundamental element that those laws govern.
non_english: U 19. veku, Maksvel je otkrio da ne možete objasniti elektomagnetni fenomen u odnosu na postojeće fundamentalnosti - prostor, vreme, masu, Njutnove zakone - pa je postulirao fundamentalne zakone elekromagnetizma i postulirao je električni napon kao fundamentalni element kojim ti zakoni upravljaju.