The few countries that banned it early on, usually did so because of its vague association with opium, which was seen (rightly so!) as a serious problem.

For those that banned it later, it's usually because they signed one of the global drug control treaties:

https://en.wikipedia.org/wiki/International_Opium_Convention

https://en.wikipedia.org/wiki/Single_Convention_on_Narcotic_...

Both have been heavily pushed by US (indeed, it effectively organized the first one), and in both cases US was the one that targeted cannabis specifically. In the Single Convention, US was the one that demanded it to be placed on the most restrictive Schedule available.

Here's a good read about all this: https://www.tni.org/en/publication/the-rise-and-decline-of-c...

Didn't the US start targeting cannabis in the 1930's so the Alcohol Prohibition workers could keep their jobs by doing something else?

It actually started targeting it domestically on state level in 1920s, because of association with low-wage Mexican immigrants. Late 30s is when it went into high gear, with high-profile federal investigations and reports (including Anslinger's famous "marijuana smoking by white women makes them want to seek sexual relations with Negroes"), and bans on state level pretty much country wide.

There is a claim by a former member of the Nixon administration that drug laws where used to target blacks and hippies to disrupt anti-war protests etc.

The same administration that pushed hard to get Cannabis classified as schedule 1 in the UN convention on drugs, as claimed by Canadian archive documents.

Cannabis was banned throughout the world, because American corporations wanted it banned, and after the US put it on the Schedule I list, efforts were made far and wide for the rest of the world to follow suit.

And yes, cannabis was banned because of who was using it - as well as how USEFUL it was in disrupting other industries (such as paper) - not because of its effects. There are countless documentaries which discuss this - a simple Youtube search will yield results.

Agreed that the US govt (read companies) put pressure on the govts. of other countries to get it banned.

I share your skepticism, generally. But I think other countries face sanctions if their local laws disagree with our drug laws, no? This would explain a lot of the agreement.

Under Napoleon in France, marijuana was banned because it reduced the soldiers' initiative to fight. Alcohol use was tolerated.

>Under Napoleon in France, marijuana was banned because it reduced the soldiers' initiative to fight.

Not really-really.

https://pointsadhsblog.wordpress.com/2016/08/09/the-real-his...