Why Did Marijuana Become Illegal?

Question by E C: Why did marijuana become illegal?
Marijuana use has been traced back thousands of years for hemp and even for its effects. Why did the plant, at some point, become a ‘terrible’ thing? Meanwhile things like tobacco give little effect and have numerous health risks (Not that marijuana is 100% safe, but it is however much less harmful than tobacco.)

Best answer:

Answer by Levi
Because of a scare campaign rooted in the fact that governments couldn’t find a way to tax it properly.

Answer by I Like Men Now
>but it is however much less harmful than tobacco

No, it’s not.

Know better? Leave your own answer in the comments!