The History. The earliest medicinal use of the plant, Cannabis, dates back to 1400-2000 BC but didn’t become a discussion until the late 1800’s, when William Osler identified this plant as a remedy for migraines. Fast forward to 1940, CBD (cannabidiol), one of the many constituents of the cannabis, plant was identified. In 1946, Dr. Walter S. Loewe tested CBD… Read More