William Randolph Hurst started the campaign against Mj. He was a huge publisher with vast lumber holdings. To do away with Hemp farming (that was used for paper and rope production) which cut into his profit margin (lumber harvested for paper production at his mills). There are songs from the 20's and before about Marijuana. To further demonize the use of MJ He and others created the "Reefer Madness" scare. Watch the old Reefer Madness movie,..it's a hoot.