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Guicciardini is best known as the author of the "Storia d'Italia" ("History of Italy"), which provides a detailed account of politics in the Italian Peninsula between 1490 and 1534. Written during the last years of his life, this work contains the historian's observations collected over his entire lifetime and was a work intended for posterity. As Gilbert writes: "The "History of Italy" stands apart from all his writings because it was the one work which he wrote not for himself, but for the public."