Monographia del punto e del moto, which Smith calls the Point and Motion memoire. It is noteworthy as using only two primitive notions, point and motion to develop axioms for geometry. Alessandro Padoa shared in this expression of Peano's logico-geometrical program that reduced the number of primitive notions from the four used by Moritz Pasch. The research into the foundations of geometry led to another formulation in 1908 in a Point and Sphere memoire. Smith (2010) describes it as a full axiomatization of Euclidean geometry based solely on the primitive concepts point and equidistance of two points N and P from a third point O, written ON = OP. This memoire was translated into Polish in 1915 by S. Kwietniewski. A young Alfred Tarski encountered the text and carried forward Pieri's program. In 1908 Pieri moved to University of Parma, and in 1911 fell ill. Pieri died in Sant'Andrea di Compito, not far from Lucca. In 2002 Avellone, Brigaglia & Zappulla gave a modern evaluation of Pieri's contribution to geometry: Pieri's work was very influential. B. Russell and L. Couturat rightly regarded him as the founder of mathematics as a hypothetical-deductive science. His precision, his rigour, and his analytical clarity are unrivaled by other Italian geometers, perhaps with the exception of Peano. Giuseppe Peano wrote this tribute to Pieri upon his death: Pieri was totally dedicated to science and teaching. He was an untiring worker, honest, and of a singular modesty. When, some twenty years ago, the professors in Italy agitated for higher salaries, Pieri declared that their salaries were already above the work they did and their merit. Mario Pieri's collected works were published by the Italian Mathematical Union in 1980 under the title Opere sui fondamenti della matematica (Edizioni Cremonese, Bologna). Personal Life For several years before his death, Pieri resided in Sant'Andrea di Compito as a guest of his sister Gemma Pieri Campetti and her husband, Umberto, a lawyer. Pieri was initially buried in a local church before his remains were transferred to the monumental cemetery in Lucca. See also Pieri's formula References E.A.C, Marchisotto, (2022) "H.S.M. Coxeter’s Theory of Accessibility: From Mario Pieri to Marvin Greenberg", Results in Mathematics (Special issue in memory of Heinrich Wefelscheid) 77:187 https://doi.org/10.1007/s00025-022-01690-9. E.A.C. Marchisotto & F. Rodriguez-Consuegra & J.T. Smith (2021) The Legacy of Mario Pieri on the Foundations and Philosophy of Mathematics, Birkhäuser. E.A.C. Marchisotto & A. Millán Gascia,