- Florentine court records show that da Vinci was charged with and acquitted of sodomy at the age of 22, and for two years, his whereabouts went entirely undocumented.
- Leonardo had no relationships with women, never married, had no children, and raised many young protégés, including one nicknamed "Salai" which means "offspring of Satan", a sketch of whom is shown below. Salai stole things, broke things, lied, and was generally a, well, devil; if he were a mere student or servant he would have been fired. It's not hard to see how this imp would be attractive to Leonardo. He stayed with Leonardo for over twenty years, and appears many times in Leonardo's sketchbooks.
- The first parachute had been imagined and sketched by Leonardo Da Vinci in the 15th century. Leonardo’s parachute design consists of sealed linen cloth held open by a pyramid of wooden poles, about seven metres long. Still, because his ideas were way ahead of his time, the technology was not able to sustain his ideas, thus nobody invented a practical parachute until 1783.
- He was left handed, that was considered evil in his time.
- Leonardo perfected the pivot for scissors.