A New DECIMA Dimension

DECIMA is thrilled to present Livorno3D, a major expansion of the DECIMA ecosystem and the first use of 3D HGIS as a tool for exploring early modern social and demographic data in a Tuscan city.

In our new 3D HGIS webapp, you can explore early modern Livorno from any angle you want. Pan, rotate and zoom through the city, dive into its streets, and explore its alleyways and its piazze.

New Data and New Analyses

Select individual buildings to find out who owned them, who lived there, what shops they hosted, and more.

Filter the map view by residents’ nationalities and occupations, by shop types, and by institutional owners.

Explore this important city – the crown jewel of Medici maritime policy – and enjoy learning about its fascinating history.

For more on the data behind Livorno3D, see our Data Description here.

New Methods for a New Model

This new map is built around a 3D model of the city of Livorno in the 18th century. The 3D model is itself modelled after a modello in plastico, a wooden model, built in the late 1980s from 18th century architectural city plans, which is now housed in the Archivio di Stato di Livorno. To turn the physical model into a digital model, DECIMA worked with Alessandro Merlo and Emmanuela Ferretti of the University of Florence, whose team photographed and scanned the plastico to create a 3d visualization of the city. DECIMA then divided the model into individual buildings and annotated those buildings with the rich data we have from archival records.

Demographics and Data in the Medici Port

The data itself is derived from property surveys undertaken in 1646. Properties were surveyed by Dogana (customs and tax) officials, with an eye to assessing the city’s properties and populations. The returns – arroti – contained both demographic and economic information about the properties and their residents. A total of 1284 buildings around the city yield information on approximately 4000 property holders – owners, lessees and tenants of the myriad apartments and rooms into which the city’s residential buildings were divided. That data was then appended to the model to allow for the exploration and analysis DECIMA now offers for this Tyrrhenian commercial port.

This project is supported by the Social Sciences and Humanities Research Council of Canada

Archivio di Stato di Firenze

Archivio di Stato di Livorno

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