<human>:  Where did the history of cocaine trafficking in Canada start?
<bot>: Cocaine trafficking in Canada started in the early 1900s. It was a big problem in the 1930s and 1940s, but it was largely controlled by the RCMP until the 1970s. In the 1980s, the drug became more popular and more organized. In the 1990s, the drug became more popular and more organized. In the 2000s, the drug became more popular and more organized.