Leonardo da Vinci · every age

What was Leonardo da Vinci doing at 30?

Painter, anatomist, engineer. Started the Mona Lisa at 51

1. c. 1482

   Wrote the Duke of Milan a job letter at 30

   He pitched himself as a military engineer, and only in the last line mentioned that he also painted.

   Source: en.wikipedia.org

Portrait: Drawing believed to be a self-portrait, Leonardo da Vinci (c. 1510), public domain, via Wikimedia Commons · source