Dr. William Brooke O’Shaughnessy

invented the modern treatment for cholera, laid the first telegraph system in Asia, contributed inventions in underwater engineering, and effectively pioneered the use of medical cannabis in Europe. Inspired by the use of cannabis in Ayurvedic and Persian medicine, O’Shaughnessy conducted the first clinical trials of marijuana, treating rheumatism, hydrophobia, cholera, tetanus, and convulsions.