text: Poggio's Historia Florentina (History of Florence), is a history of the city from 1350 to 1455, written in avowed imitation of Livy and Sallust, and possibly Thucydides (available in Greek, but translated into Latin by Valla only in 1450–52) in its use of speeches to explain decisions. Poggio continued Leonardo Bruni's History of the Florentine People, which closed in 1402, and is considered the first modern history book. Poggio limited his focus to external events, mostly wars, in which Florence was the defensor Tusciae and of Italian liberty. But Poggio also pragmatically defended Florence's expansionist policies to insure the "safety of the Florentine Republic", which became the key motive of its history, as a premonition of Machiavelli's doctrine. Conceding to superior forces becomes an expression of reason and advising it a mark of wisdom. His intimate and vast experience of Italian affairs inculcated in him a strong sense of realism, echoing his views on laws expressed in his second Historia disceptativa convivialis (1450). Poggio's beautiful rhetorical prose turns his Historia Florentina into a vivid narrative, with a sweeping sense of movement, and a sharp portrayal of the main characters, but it also exemplifies the limitations of the newly emerging historical style, which, in the work of Leonardo Bruni, Carlo Marsuppini and Pietro Bembo, retained "romantic" aspects and did not reach yet the weight of objectivity later expected by the school of modern historians (especially since 1950).