<A HREF="https://en.wikipedia.org/wiki/John_Ambrose_Fleming">John Ambrose Fleming</A> is credited with the invention of the <A HREF="https://en.wikipedia.org/wiki/Right-hand_rule">right-hand-rule</A> in the context of electromagnetism. The figure below, illustrating $X=Y\times Z$ in a right-handed coordinate system, is from <A HREF="https://archive.org/details/magnetselectricc00flem">Magnets and electric currents, an elementary treatise for the use of electrical artisans and science teachers</A> (1898). <IMG SRC="https://i.sstatic.net/a30wO.png" WIDTH="400"/> [1]: https://i.sstatic.net/a30wO.png