Who are the scholars who founded epistemology philosophy?

Epistemological philosophy has gone in hand with all Philosophy throughout history. A group of philosophers called the Pre-Socratics our are earliest known philosophical thinkers, and epistemology goes hand in hand with ontology and metaphysics throughout their writings. The first real push toward Epistemological study in its own right can be associated with the skeptics like Phyrro, and with Plato and the sophists, all of these groups coming to widely different conclusions. Again epistemology is closely linked to metaphysics throughout these thinkers. In all truth, it is impossible to identify one scholar as a founder of epistemological thought.