Leardo Map (image) University of Wisconsin - Milwaukee Share Print E-Mail Caption The Mappamundi, the oldest original map in the AGSL holdings, was produced in 1452 by the Venetian cartographer Giovanni Leardo. The circular map, considered the finest example of a medieval wall map in the Western Hemisphere, shows the known world consisting of only Europe, Asia and Africa. Credit AGS Library, University of Wisconsin-Milwaukee Usage Restrictions with credit provided above. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.