Leonardo Da Vinci

Here's a time line of Leonardo Da Vinci's life:

1452 - Leonardo da Vinci was born.
1473 - His earliest known dated work was sketched.
1478 - da Vinci received his first independent commission.
1480 - da Vinci began to seriously study anatomy and dissect human and animal bodies.
1482 - orenzo de' Medici commissioned da Vinci to create a silver lyre.
1483 - His painting of the “Virgin of the Rocks,” begun.
1495 - Ludovico commissioned da Vinci to paint “The Last Supper” on the back wall of the dining hall inside the monastery of Milan’s Santa Maria delle Grazie.
1499 - With the help of apprentices and students in his workshop, da Vinci worked on the project on and off for more than a dozen years. Leonardo sculpted a life-size clay model of the statue.
1503 - da Vinci started work on the “Battle of Anghiari,” a mural commissioned for the council hall in the Palazzo Vecchio that was to be twice as large as “The Last Supper.”
1506 - leonardo returned to Milan to work for the very French rulers who had overtaken the city seven years earlier and forced him to flee.
1513 - da Vinci left the city and moved to Rome.
1515 - After being present at meeting between France’s King Francis I and Pope Leo X in Bologna, the new French monarch offered da Vinci the title “Premier Painter and Engineer and Architect to the King.
1519 - He continued work on his scientific studies until his death at the age of 67 on May 2, 1519.

"Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity. ”
- Leonardo da Vinci

If you have time, you should read more about this legendary human being.