Tobacco was discovered by Christopher Columbus along with the Americas in 1492. He saw the natives there smoking these products and added this to his journal. Since then I am sure tobacco has contributed to billions of death and will continue to cause billions more in the coming centuries.
It should be a common knowledge that the gums (gingiva) are a very important part of the oral cavity and plays a major role in keeping the mouth and the teeth healthy.
Tattoos or Piercings have been practiced in the world since ancient times in many cultures all over. We can still meet old ladies of various communities in Nepal who have these inks printed on their hands and legs and many with multiple piercings in their ears or nose. Many cultures around the world had these traditions with an esthetic appeal to it.