A2. About 1600 BCE, the Olmec passed on this technique to the Maya. They boiled latex to make a ball for recreation.
RUBBER
rubber
the ball was made from leather paneling over a rubber carcass
it is made of air compacted into a rubber ball
bouncyball
It is a hollow ball made completely of rubber.
it made out of rubber
made of rubber
Rubber.
rubber
Rubber
Rubber