Emperor Shen Neng: A Brief History

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Ancient
2737 B.C. — Emperor Shen Neng was one of the first major leaders in the ancient world to prescribe marijuana tea to treat various illnesses.

2000–1400 B.C. — The hemp plant was viewed as holy by Hindus. While there was little scientific evidence for the medical use of cannabis, it was incorporated in India for thousands of years.

1550 B.C — Chinese surgeon Hua Tuo is the first recorded physician to use cannabis as an anesthetic during surgery.
Medieval
100–1000s A.D. — Cannabis was a popular folk medicine in Europe. It was used to treat coughs, tumours, and jaundice.
Modern
1545 — Spanish explorers brought cannabis to North America. Hemp was used for clothes, paper, and ropes for the maritime industry.
1700s — American medical

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