If there are maps only because Christopher Columbus?

One of the most beautiful view on the Internet, is that the maps of Piri Reis, for which many have argued over the years were the true source of knowledge of Christopher Columbus, were actually "modeled" on the other drawn by Columbus himself that, therefore, would actually discovered America at least seven years before the official date. We talk about it because they understand as well as misinformation arises from ignorance, hide the truth from a thesis and after its opposite. But time plays into the hands of the truths that, however, has its times.