Thousands of Albertans gathered at the provincial legislature for a celebration of cannabis culture Sunday afternoon.

The event, known as 4/20, takes place every year on April 20 at about 4:20 p.m. as part of worldwide demonstrations for the legalization of marijuana.

In Edmonton, participants include the Alberta Marijuana Party and other lobby groups around the province.

Pro-marijuana legalization rallies were also held across the country on Sunday.

In Ottawa, police estimated more than 2,000 people hit Parliament Hill for a rally and in Montreal, pot enthusiasts congregated on Mont-Royal to partake in the event. Hundreds also turned out at rallies in Vancouver and Toronto.

4/20 rally Edmonton

Thousands of marijuana enthusiasts amassed at the provincial legislature for the annual celebration. (Silvana Benolich/CBC)

Local 4/20 organizers were advertising events from Whitehorse to Halifax, Iqaluit to Windsor, Ont., in Dallas, Texas, and Birmingham, Ala., London, Belfast, Reykjavik, Aukland, Lima and Cape Town, South Africa, to name just a few.

The 4/20 moniker originated from California in the early 1970s. The event spread to north of the border when a group of Vancouver activists held the first day-long rally on April 20 in 1995.  

With files from The Canadian Press