Cannabis, commonly known as weed, wasn't "discovered" on a single date but emerged through ancient human cultivation and use dating back thousands of years.

Origins in Ancient Asia

Weed's earliest traces appear in Taiwan and China around 5000 BCE, where it was first grown for its strong fibers to make rope and textiles. Seeds also served as a food source, boosting its spread across Central Asia. By 2000 BCE to 500 CE, its medicinal properties—for pain and inflammation—gained recognition in China, India, and Egypt.

Archaeological Evidence

The oldest physical proof of psychoactive use comes from a 2500-year-old cemetery in western China's mountains, where high-THC cannabis was burned in braziers during rituals along the Silk Road. Cannabis evolved naturally about 28 million years ago on the eastern Tibetan Plateau, with farming starting over 4000 years ago for oil, fiber, and more.

Global Spread

  • From Central Asia (China, Mongolia, etc.), it reached the Middle East, North Africa, and Europe via trade and migration by the 8th-15th centuries CE.
  • Spanish settlers brought it to the Americas in the 16th-19th centuries for hemp.
  • In Africa, it arrived via Indian traders and Bantu migrations, with smoking pipes dated to 1320 AD in Ethiopia.

Medicinal Timeline

Ancient texts like a Chinese reference from ~2737 BCE noted its euphoric effects. By the 1800s, it treated cholera symptoms in India and gained popularity in North America and Europe.

Era| Key Use| Regions
---|---|---
5000 BCE| Fiber, food| China, Taiwan 1
2500 years ago| Psychoactive rituals| Western China 3
2737 BCE (claimed)| Medicine, euphoria| China 8
16th-19th CE| Hemp production| Americas 1

TL;DR at bottom: Cannabis originated ~5000 BCE in Asia for practical uses, with psychoactive evidence from ~500 BCE; it spread globally over millennia.

Information gathered from public forums or data available on the internet and portrayed here.