Italo Calvino was born in Santiago de las Vegas, a suburb of Havana, Cuba, in 1923. His father, Mario, was a tropical agronomist and botanist who also taught agriculture and floriculture.Born 47 years earlier in Sanremo, Italy, Mario Calvino had emigrated to Mexico in 1909 where he took up an important position with the Ministry of Agriculture. In an autobiographical essay, Italo Calvino explained that his father "had been in his youth an anarchist, a follower of Kropotkin and then a Socialist Reformist".In 1917, Mario left for Cuba to conduct scientific experiments, after living through the Mexican Revolution. Calvino's mother, Giuliana Luigia Evelina "Eva" Mameli, was a botanist and university professor. A native of Sassari in Sardinia and 11 years younger than her husband, she married while still a junior lecturer at Pavia University. Born into a secular family, Eva was a pacifist educated in the "religion of civic duty and science". Eva gave Calvino his unusual first name to remind him of his Italian heritage, although since he wound up growing up in Italy after all, Calvino thought his name sounded "belligerently nationalist".Calvino described his parents as being "very different in personality from one another",suggesting perhaps deeper tensions behind a comfortable, albeit strict, middle-class upbringing devoid of conflict. As an adolescent, he found it hard relating to poverty and the working-class, and was "ill at ease" with his parents' openness to the labourers who filed into his father's study on Saturdays to receive their weekly paycheck.