1445 - He was born in Sansepolcro (Italy), Italian mathematician
1464
1464 - He moved to Venice. It was during this period that he wrote his first book, a treatise on arithmetic for the boys he was tutoring.
1470
1470 - He settled in Rome with Leon Battista Alberti, personal secretary of the Pope
1477
1477 - Professed as a Franciscan friar
1480
1480 - Gave arithmetic lessons at the University of Perugia, of which he wrote a treatise for use by his students.
1494
1494 - He summarized the mathematical knowledge of his time in the work Sum of arithmetic, geometry, proportions and proportionality. his first book to be printed
1496
1496 - He started working with Leonardo da Vinci
1497
1497 - He accepted an invitation from Duke Ludovico Sforza to work in Milan.
1498
1498 - Was the first to provide double-entry management in europe
1499
1499 - Enters the French troops to teach arithmetic at the University of Bologna
1502
1502 - Was considered one of the best masters in accounting in Italy was hired by the Duke of Florence to work in the court as treasurer
1506
1506 - He was appointed superior of the Order of Romagna
1509
1509 - Of the divine proportion - He established a relationship between the golden section, the architectural principles and the classical proportions of the human body
