Treasured 15th Century World Map to Undergo Multispectral Imaging

The Leardo Mappamundi was created by cartographer Giovanni Leardo in Venice for an unknown patron, likely a church official. (UWM Photo/Elora Hennessey)

The oldest and rarest manuscript map in the American Geographical Society Library’s collection–Venetian cartographer Giovanni Leardo’s 1452 mappamundi–will be scanned using multispectral technology in March this year.

A team from the Lazarus Project, based at the University of Rochester, is visiting AGSL to scan the Leardo and, via digital processing, produce archival-quality images that will reveal faded and even invisible-to-the-naked-eye inscriptions on the nearly 600 year-old hand-drawn map.

The Lazarus team will offer a talk on their project and the AGSL’s Leardo map on Wednesday, March 12 at 5 p.m. in the AGSL.

Read more about the Lazarus Project’s visit to UWM here>