0 A.D. – 999 A.D.

Galeni (129 A.D. – 200 A.D.) Discovers no volatile substance in the physiology of the plant


1000 A.D. – 1499 A.D.


1500 A.D. – 1699 A.D.


“Hempe” or Hemp as we know it today is a derivation of Hanf and Hamp, the Germanic and Scandanavian spellings respectively.  Cannabis comes from Canvas and Hempen fibers are still used to make canvas fabrics today.


1700 A.D. – 1799 A.D.

Cannabaceae is a known species of Plant identified by Carl Linnaeus, also known as Carl von Linné or Carolus Linnaeus, born May 23, 1707, the Father of Taxonomy.  His system for naming, ranking, and classifying organisms is still in wide use today (with many changes).

1800 A.D. – 1899 A.D




1900 A.D. – 1910 A.D.

1910 A.D. – 1919 A.D.

1920 A.D. – 1929 A.D.

1930 A.D. – 1939 A.D.

1940 A.D. – 1949 A.D.

1950 A.D. – 1959 A.D.

1960 A.D. – 1969 A.D.

1970 A.D. – 1979 A.D.

1980 A.D. – 1989 A.D.

1990 A.D. – 1999 A.D.

2000 A.D. – 2009 A.D.

2010 A.D. – 2019 A.D.

March 16, 2012: Obama issues Presidential Executive Order #13603

April 2014: Obama signs 2014 Farm Act: Industrial Hemp Section 7606

August 11, 2016: DEA reaffirms their position Schedule 1 is their only option

August 12, 2016: DEA issues non-binding publication to clarify 2016 Hemp Law.

From remote periods, Hemp has been propagated on account of its textile fiber and oily seed.  The Greeks and Romans appear to have been unaquainted with the Medical powers of Hemp.  According to Stanislaus Julien, anesthetic powers were ascribed by the Chinese to preparations of Hemp as early as commencement of the third century.

The dietetic and medicinal employment of hemp appears to have spread slowly through India and Persia to the Arabians, amongst whom the plant was used in the early middle ages.  Although the astonishing effects produces in India by administration of Hemp are seldom witnessed in cooler climates, the powers of the drug are sufficiently manifested to give it a place in Pharmacopeia.

H.K. Mulford Veterinary Bulletin Volume 4, Issue 3