Try searching for Piri Reis, which is the usual spelling. It is believed to have been made in 1513 by an Admiral of the Ottoman Empire named Piri Reis. It was lost for centuries but turned up again in 1929. The map is genuine, as far as I know, but it seems to be a magnet for all kinds of kooks, for reasons I don’t really understand. One Internet site you might find useful is one I can’t manage to link to. You’ll have to paste the URL into your browser.