| 1198 | -1204 : Fourth crusade. Battle of Constantinople taken by the Christians. |
| 1253 | Start of the trip of Niccolo and Matteo Polo | |
| 1254 | Birth of Marco Polo |
| 1269 | Back of Niccolo and Matteo |
| 1271 | Begining of the Marco Polo's trip |
| 1295 | "Baby Jo : going home" ;-) End of the trip of Marco Polo |
| 1298 | Marco Polo is done prisoner after the battle in the bay of Curzola |
| 1315 | Discovery? of the Açores and Madère (signaled by the Portolano Laurentino) |
| 1324 | Death of Marco Polo |
| 1492 | 12 october : Cristobal Colon thinks discovering the Indias (in fact America) |
