Is evolution a law

No, it is a theory.

Answer

With an apology to the first answer, evolution is a law. and is called The Law of Evolution. It is the natural state by which all things evolve. Examples of this are that mankind is much taller than those of say the 1700's and later. He is healthier fitter and is most cases more intelligent. (Though there is some argument regarding some people). It is not a follow up of the Darwinian theory as this has now been found to be false. The Law of Evolution is a God given law and not a man made law.