When to see a doctor. See a doctor if you or a loved one has memory problems or other dementia symptoms. Some treatable medical conditions can cause dementia symptoms, so it's important to determine the underlying cause.
A brief history of tobacco. (CNN) -- Tobacco was first used by the peoples of the pre-Columbian Americas. Native Americans apparently cultivated the plant and smoked it in pipes for medicinal and ceremonial purposes.
In 1612 a man named John Rolfe introduced the cultivation of  tobacco to the Jamestown settlement. He obtained samples of the  Nicotiana Tabacum variety of tobacco (from aâ¦ Spanish colony  either in South America or Jamaica) which was superior to the  Nicotiana Rustica variety grown locally.