In what year was the link between smoking and lung cancer first described?

The year that the link between smoking and lung cancer was first described is 1950. This significant correlation was established through a groundbreaking study conducted by researchers Richard Doll and Austin Bradford Hill, which concluded that cigarette smoking was a major cause of lung cancer. Their study involved analyzing lung cancer rates among smokers and non-smokers, ultimately providing compelling evidence of the harmful effects of tobacco. This research was pivotal in shaping public health policies and raising awareness about the dangers of smoking, leading to subsequent anti-tobacco campaigns and further investigations into the health risks associated with smoking.