Eco was born on 5 January 1932 in the city of Alessandria, in Piedmont in northern Italy. The spread of Italian Fascism throughout the region influenced his childhood. At the age of ten, he received the First Provincial Award of Ludi Juveniles after responding positively to the young Italian fascist writing prompt of "Should we die for the glory of Mussolini and the immortal destiny of Italy?" His father, Giulio, one of thirteen children, was an accountant before the government called him to serve in three wars. During World War II, Umberto and his mother, Giovanna (Bisio), moved to a small village in the Piedmontese mountainside. His village was liberated in 1945, and he was exposed to American comic books, the European Resistance, and the Holocaust. Eco received a Salesian education and made references to the order and its founder in his works and interviews.
Towards the end of his life, Eco came to believe that his family name was an acronym of ex caelis oblatus (from Latin: a gift from the heavens). As was the custom at the time, the name had been given to his grandfather (a foundling) by an official in city hall. In a 2011 interview, Eco explained that a friend happened to come across the acronym on a list of Jesuit acronyms in the Vatican Library, informing him of the likely origin of the name.
Umberto's father urged him to become a lawyer, but he entered the University of Turin (UNITO), writing his thesis on the aesthetics of medieval philosopher and theologian Thomas Aquinas under the supervision of Luigi Pareyson, for which he earned his Laurea degree in philosophy in 1954.
