No, that is NOT what Paul did. What he DID do was to tell the men in Athens that the temple they dedicated to The Unknown God - hoping that any they left out wouldn't be offended and do bad things to them, built a temple to basically "any and all gods, etc.", that there was only, one true God:
Acts 17:22-24
Then Paul stood in the midst of Mars' hill, and said, Ye men of Athens, I perceive that in all things ye are too superstitious. For as I passed by, and beheld your devotions, I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship, him declare I unto you. God that made the world and all things therein, seeing that he is Lord of heaven and earth, dwelleth not in temples made with hands;
Well, I do believe you are beginning to grasp the point.