19th Century
- 1807: Napoleon tries to cut off Russian hemp trade with Britain
- 1812: Cannabis caught in wars between the superpowers
- 1840: Abraham Lincoln speaks about prohibition
- 1843: Colonial cultures clash over cannabis
- 1845: Dr Jacques Joseph Moreau writes his book Hashish and Mental Alienation
- 1844 - 1849: Le Club des Hashischins.
- 1850: The United States Census counts 8327 hemp plantations
- 1851: Marijuana is listed in the U.S. Pharmacopoeia
- 1854: One Of The First Americans To Write About Cannabis
- 1857: Fitz Hugh Ludlow writes The Hasheesh Eater
- 1876: Hash Reaches America
- 1890: A cannabis tincture is prescribed to Queen Victoria
1850: The United States Census counts 8327 hemp plantations
The United States Census of 1850 was the seventh census of the United States. Conducted by the Census Office on June 1, 1850, it determined the resident population of the United States to be 23,191,876. The total population included 3,204,313 slaves.
1851: Marijuana is listed in the U.S. Pharmacopoeia
In the 1820's several American medical societies created the first edition of the United States Pharmacopoeia (U.S.P.).
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