Besides this history, Machiavelli wrote his discourses on the first decade of Livy, considered his best work, and "The Art of War," which is an invaluable commentary on the history of the times. These works had the desired effect of inducing the Medici family to use the political services of the author, and at the request of Leo X. he wrote his essay "On the Reform of the Florentine Government."
Guicciardini (1483-1541), the friend of Machiavelli, is considered the greatest historian of this age. He attached himself to the service of Leo X., and was raised to high offices and honors by him and the two succeeding popes. On the expulsion of the Medici from Florence, the republican party having obtained the ascendency, he was obliged to fly from the city. From this time he manifested an utter abhorrence of all popular institutions, and threw himself heart and soul into the interests of the Medici. He displayed his zeal at the expense of the lives and liberties of the most virtuous among his fellow-citizens. Having aided in the elevation of Cosmo, afterwards Grand Duke of Tuscany, and being requited with ingratitude and neglect, he retired in disgust from public life, and devoted himself wholly to the completion of his history of Italy. This work, which is a monument of his genius and industry, commences with the coming of Charles VIII. to Italy, and concludes with the year 1534, embracing one of the most important periods of Italian history. His powerfully-drawn pictures exhibit the men and the times so vividly, that they seem to pass before our eyes. His delineations of character, his masterly views of the course of events, the conduct of leaders, and the changes of war, claim our highest admiration. His language is pure and his style elegant, though sometimes too Latinized; his letters are considered as a most valuable contribution to the history of his times.
Numberless historians, of more or less merit, stimulated by the renown of Machiavelli and Guicciardini, composed annals of the states to which they belonged, while others undertook to write the histories of foreign nations. Nardi (1496-1556), one of the most ardent and pure patriots of his age, takes the first place. He wrote the history of the Florentine Revolution of 1527, a work which, though defective in style, is distinguished for its truthfulness. The histories of Florence by Adriani, Varchi, and Segni (1499-1559), are considered the best works of their kind, for elegance of style and for interest of the narrative. Almost all the other cities of Italy had their historians, but the palm must be awarded to the Florentine writers, not only on account of their number, but for the elegance and purity of their style, for their impartiality and the sagacity of their research into matters of fact. Among the writers of the second class may be mentioned Davanzati (1519), the translator of Tacitus, who wrote, in the Florentine dialect, a history of the schism of England; Giambullari (1495-1564), who wrote a history of Europe; D'Anghiera (fl. 1536), who, after having examined the papers of Christopher Columbus, and the official reports transmitted from America to Spain, compiled an interesting work on "Ocean Navigation and the New World." His style is incorrect; but this is compensated for by the fidelity of his narration. Several of the German States, France, the Netherlands, Poland, Hungary, and the East Indies, found Italian authors in this age to digest and arrange their chronicles, and give them historical form.