the father of geometry

So if you've been wondering where to send your geometry fan mail,Euclid of Alexandria is the guy to thank for proofs.Euclid is not really known for inventing or discovering a lot of mathematics but he revolutionized the way in which it is written,presented, and thought about.Euclid set out to formalize mathematics by establishing the rules of the game.These rules of the game are called axioms.Once you have the rules,Euclid says you have to use them to prove what you think is true.If you can't, then your theorem or idea might be false.