Independence apex.......................
Answer:
When he was 20, in 1472, the painters' guild of Florence offered da Vinci membership, but he remained with Verrocchio until he became an independent master in 1478. Around 1482, he began to paint his first commissioned work, The Adoration of the Magi, for Florence's San Donato, a Scopeto monastery.
One of the innovations that helped neolithic (New Stone Age) farmers become more productive was:
d) the reaper
The reaper, otherwise known as a sickle, is an agricultural tool used to harvest crops or cut them to feet livestock.