1793 CE
Samuel Crumpe publishes "Inquiry into the nature and properties of opium"

Dr. Samuel Crumpe was an Irish physician and writer on medical issues. In 1793, he published a comprehensive work about opium titled 'Inquiry into the nature and properties of opium', in which he discussed the main features of addiction as well as the withdrawal effects of opium. Crumpe did not, however, condemn opium on a moral level (whether it was taken recreationally or for medical purposes), and even admitted to having taken opium frequently.

Source: Martin, B. (1996). Opium: A History.

Drugs: Opium (morphine, heroin, opioids)
Regions: UK (England, Scotland, Wales, Northern Ireland)
Topics: Health and social problems