Leonardo Bruni

Leonardo Bruni (or Leonardo Aretino) (c. 1370 – March 9, 1444) was an Italian humanist, historian and statesman, often recognized as the most important humanist historian of the early Renaissance. He has been called the first modern historian. He was the earliest person to write using the three-period view of history: Antiquity, Middle Ages, and Modern. The dates Bruni used to define the periods are not exactly what modern historians use today, but he laid the conceptual groundwork for a tripartite division of history.

Leonardo Bruni was born in Arezzo, Tuscany circa 1370. Bruni was the pupil of political and cultural leader Coluccio Salutati, whom he succeeded as chancellor of Florence, and under whose tutelage he developed his ideation of civic humanism. He also served as apostolic secretary to four popes (1405-1414). Bruni's years as chancellor—1410 to 1411 and again from 1427 to his death in 1444—were plagued by warfare. Though he occupied one of the highest political offices, Bruni was relatively powerless compared to the Albizzi and Medici families. Historian Arthur Field has identified Bruni as an apparent plotter against Cosimo de' Medici in 1437 (see below). Bruni died in 1444 in Florence and was succeeded in office by Carlo Marsuppini.

Bruni's most notable work is Historiarum Florentini populi libri XII (History of the Florentine People, 12 Books), which has been called the first modern history book. While it probably was not Bruni's intention to secularize history, the three period view of history is unquestionably secular and for that Bruni has been called the first modern historian. The foundation of Bruni's conception can be found with Petrarch, who distinguished the classical period from later cultural decline, or tenebrae (literally "darkness"). Bruni argued that Italy had revived in recent centuries and could therefore be described as entering a new age.

...
Wikipedia