L’altare di Caius Titurnius Florus a Sant‘Angelo della Polvere. Tracce di insediamenti antichi scomparsi nella Laguna di Venezia

The paper aims at offering a reinterpretation of some unpublished manuscripts by Giovanni Casoni, a Venetian engineer, who lived in the 19th Century. Casoni's Diaries were dedicated to the discovery of a funerary altar with an interesting inscription, in Sant'Angelo della Polvere Island, collocated in the central part of the Venice Lagoon. Thanks to a study on archaeological elements in the manuscripts preserved in the Museo Correr in Venice, and thanks to a contextualization of the altar in the ancient settlements, a new perspective on the artefact is proposed.