to grind grains provide drinking water
made softer stronger clothes
help with hunting and create expolsions
to tell time
made things that were larger easier and faster to carry
to more accuratly write down things
Dries to a harder surface than normal paint would.
it made things easier to write down things
The Flame thrower was apparently first invented in China, thye were used as protection device and a type of wheeled mobile artillery.
It was a better sort of pottery, like amore durable kind of pottery.