Tobacco smoking has been with us for many years, centuries in fact originating from the Americas. The first reported European smoker Rodrigo de Jerez, was puffing to his hearts content in 1492! The trend caught on quickly and after a while and with the advent of the tobacco trading shipping routes, Tobacco become common place in Europe.
Initially use for religious or medical purposes due to and analgesic effect, the usage spread amongst everyday folk quickly. We have been smoking or chewing tobacco in one form or another since then.
Nicotine, a by product of tobacco is extremely habit forming and very toxic in certain amounts. Surprisingly, withdrawal from nicotine is as difficult as withdrawing from Heroin! I is very insidious as the high is more subtle.