What are some great things Leonardo da Vinci did in his life time that was great accomplishments

Leonardo da Vinci was famous for his designs, art, cartography, geology, and studies. Leonardo's designs later helped us to invent things like the tank, parachute, helicopter and many other things. He was also a very talented artist. Most of his pictures and paintings are in art galleries and museums.

Explanation:

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.