Marijuana has been used for thousands of years, both for smoking and for making rope and fuel. Then, between 1937 and 1947, $220 billion was spent by the American government to mount a propaganda war, painting the plant as a source of evil. This despite the fact that, back in 1797, hemp aka marijuana, was the major cash crop of President George Washington at his Mount Vernon estate. Thomas Jefferson also grew hemp.
The cost of outlawing marijuana rose even higher: between 1948 and 1963 the cost came in at $1.5 billion; from 1964 to 1969 – so just four years – the cost had risen to $9 billion. The cost continues to rise.