section_path: Characteristics/Self-awareness
section_name: Self-awareness
paragraph_text: Self-awareness
  
  By the 15th century, writers, artists, and architects in Italy were well aware of the transformations that were taking place and were using phrases such as modi antichi (in the antique manner) or alle romana et alla antica (in the manner of the Romans and the ancients) to describe their work. In the 1330s Petrarch referred to pre-Christian times as antiqua (ancient) and to the Christian period as nova (new). From Petrarch's Italian perspective, this new period (which included his own time) was an age of national eclipse. Leonardo Bruni was the first to use tripartite periodization in his History of the Florentine People (1442). Bruni's first two periods were based on those of Petrarch, but he added a third period because he believed that Italy was no longer in a state of decline. Flavio Biondo used a similar framework in Decades of History from the Deterioration of the Roman Empire (1439–1453).
  
  Humanist historians argued that contemporary scholarship restored direct links to the classical period, thus bypassing the Medieval period, which they then named for the first time the "Middle Ages". The term first appears in Latin in 1469 as media tempestas (middle times). The term rinascita (rebirth) first appeared, however, in its broad sense in Giorgio Vasari 's Lives of the Artists, 1550, revised 1568. Vasari divides the age into three phases: the first phase contains Cimabue, Giotto, and Arnolfo di Cambio; the second phase contains Masaccio, Brunelleschi, and Donatello; the third centers on Leonardo da Vinci and culminates with Michelangelo. It was not just the growing awareness of classical antiquity that drove this development, according to Vasari, but also the growing desire to study and imitate nature.