Featured on PDR in the collection “Knowledge Is Infinite”: Manuscript of Piri Reis’ Book of Seafaring (ca. 17th Century)

“Hearken to the secrets I reveal and from them know and discern my aim”, wrote the Ottoman cartographer Piri Reis in his Kitab-ı Bahriye (Book of Seafaring). “It was with God’s guidance that it became my habit to roam the seas. And so it was: and were I to live forever I would always be at sea.”