Cigarette era (1 ene 1740 año – 1 dic 2000 año)

Descripción:

beginning in the mid-1700s, the popularity of cigarettes experienced a sharp increase. The quick increase and sheer number of people smoking made it very hard to see a correlation between smoking and lung cancer. It was not until 1947 that it was brought to the British Government that the increase in lung cancer should be investigated.

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