On Nov. 6, 2012, I-502 was voted into law with a narrow 55 percent majority. The new law legalized the recreational use and possession of marijuana.

From the beginning, there were a lot of concerns about the effect legalization would have on Washington, but two years later, most of those concerns have been quelled.

Marijuana-related crimes have decreased since I-502 passed. At the same time, almost half a billion dollars worth of marijuana has been sold. Of that, $117 million was collected in tax revenue.

As more information comes to light, other states are looking to Washington as they vote on recreational marijuana legalization.