Answer:
A Bar
Explanation:
A bar is just another way of saying measure!
They used marble, bronze, and clay
He only started painting when he was 27 years old.
His life is documented on the letters he has wrote.
Before declaring he was an artist, he attempted many other careers.
For most of his life he had a mental illness.
He cut off his own ear.
Answer:
On a sphere that would be the core shadow
Explanation:
