What did Simon do after leaving Samaria, according to historical findings?

Les explains that Simon did not receive the Word in his heart; he only saw with the physical and material what could be gained. Peter told Simon to repent of his wickedness and pray that the thought of his heart might be forgiven, but Scripture gives no hint that Simon ever changed his mind. In fact, Les mentions a book they read lately indicating Simon was probably the promoter of what was later called Gnosticism, a total counterfeit of Christianity. He actually went from Samaria according to archaeological and historical findings and became the enemy of the Gospel, because he was a satanically endowed individual.