What did Aristotle discover?

Aristotle is an ancient Greek scientist, one of the greatest minds and philosophers of humanity.
More: Aristotle was not only a physicist, he observed animals and described about 500 thousand of their species. You can endlessly talk about each of the open observations of laws, but we can say in general terms that he discovered the main principles of building any deductive theory on the basis of which the “beginnings” of Euclid were written – Beginnings is a collection of 13 books about geometry written by Euclid before our era.