Youre actually a litle off the ball there Mugen. But close.
In the early 1900s marijuana was made illegal for one reason.
You see Indian hemp (or 'weed' as you know it) has been used for centuries to make rope and rigging for sails, all manner of things- even clothing. It is a far superior plant in terms of strength and versatility than cotton.
But we all know the good ol' cotton farmers who had enough power to cause Americas only civil war to keep their slaves wouldn't be the type of people to sit idly by as the introduction of Indian hemp destroyed their cotton industry.
So they made a deal with the government. Oooh a conspiracy.
Yes a real one this time.
The plantation owners, who went to the same version of golf clubs with the governors and lawyers and big wigs of that time, decided the Indian hemp industry had to go.
Well, at the time, most of the pickers of hemp were Mexican immigrants and they had a litle habit of chewing and smoking the leaves while they worked.
Those in power decided to focus on this and use the 'devious Mexicans' and their 'degenerate ways' as a reason to ban Indian hemp.
Propaganda movies like Reefer Madness were made to show that taking marijuana made you loose control, go insane, and become Satans very own circus freak.
Eventually, just as Bush said weapons of mass destruction, evil Iraqis and anti-Americanism were the right reason to invade Iraq - the Bushes of that time said drugs of mass hallucination, evil Mexicans and their un-American habits, were the reasons the Indian hemp plantations had to be closed down.
Im sure a speech (In all instances those in power want to convince the moronic masses that what they are about to do is for those masses own good.) would have been used along the lines of:
"We are saving this country from a very real threat. One that has the power to tear our society and all we stand for apart at its very seams."
Basically, the government made marijuana illegal to put the Indian hemp growers out of business, so the cotton industry and all those rich powerful southern plantation owners could keep their stranglehold on the market.
It was a conspiracy. But nothing in the way many of you think.
Alcohol was illegal in America at one stage too. It was called the Prohibition Era. But it didn't stop people going to illegal drinking halls and it didn't stop organized crime making a killing (literally) off the selling of alcohol in America.
I think the fact that all over the world humans have made their own form of fermented drink for relaxation purposes, and drink has been around and part of nearly every culture for so long, when you try to cut it off from them they rebel.
Marijuana was never as widespread as alchohol at the time of its banning, being mainly an eastern drug at the time.