Nicolaus Copernicus enters Kraków University in 1491. A year later Christopher Columbus "sails the ocean blue" on his first journey across the Atlantic Ocean to Asia, but he ends up in the Americas. in 1496 Leonardo da Vinci unsuccessfully tests a flying machine. The Catholicon is published in 1499 in Treguier (Brittany). This Breton-French-Latin dictionary had been written in 1464 by Jehan Lagadeuc. It's the first Breton dictionary, as well as the first French dictionary in world history.