I'm not sure but I think it's coal mining
(Jacobins group) The Jacobins killed people in an attempt to purge the public in France. They believed many people were a threat to the nation.
This is actually pretty common and the reason "why" is due to the idea of hysteria. Hysteria clouds judgement. There are so many examples of hysteria clouding societies judgement in society.
Ummm...I think that's the oath that states the obligations and proper conduct of doctors, formerly taken by those beginning medical practice. Parts of the oath are still used in most medical schools.