It was founded on December 7, 1922, by Luigi Bianchi, Vito Volterra, and most notably, Salvatore Pincherle, who became the Union's first President.
[1][2][3] Salvatore Pincherle, professor at the University of Bologna, sent on 31 March 1922 a letter to all Italian mathematicians in which he planned the establishment of a national mathematical society.
The most important Italian mathematicians of the time - among all Luigi Bianchi and Vito Volterra - encouraged Pincherle's initiative also by personally sending articles for the future Bulletin; overall, about 180 mathematicians replied to Pincherle's letter.
In 1928 the Italian Mathematical Union hosted the International Congress of Mathematicians in Bologna.
The Union's journal is the Bollettino dell'Unione Matematica Italiana, which contains two sections: one for research papers, and one for expository articles.