Venice, Italy, was the birthplace of Guido Castelnuovo. He studied mathematics at the University of Padua and—following his graduation—spent the next year in Rome on a scholarship. His first academic appointment was at the University of Turin and, from there, he advanced to the University of Rome as the Chair of the Analytic and Projective Geometry Department. His most important publishing work was produced in 1903: Geometria analitica e prolettiva. During the following years, he produced a series of papers on algebraic surfaces. He also wrote on probability and the theory of relativity. Castelnuovo died in Rome, Italy, in 1952.