Jade was not discovered it was found by the Mayans in East Asia
you can go to Chicago and you might find jade in a jewelry store or a pon shop or a Asian store.
No
No
Jade was undoubtedly found by humankind in prehistoric times, so it will never be known who was the first to focus their attention on it.
Yes you can
Yes.
Quincy is found in western Illinois. It is a city in Illinois.
Jade!
yes
Because the people who found the mountain Yushan like Jade
The Chinese believe that jade preserved the body from decay