To help make the surgery easier when performing the surgery.
no the invention gave people constipation.
to communicate
everyone
Daily baths and antiperspirant/deodorant. If this does not help see your doctor
to help people who were in the army be protected.
the reasons were to help people that couldn't afford to pay to get help
to help people get to places across the ocean faster
Astrolabe
seriously somebody will change this thing!
The airplane helped people to moved quickly from one place to another.
People could use soap to wash themselves and other things.