Featured image: 7,000-year-old skeleton of woman may have been a victim of leukemia, making it the oldest case found.
Story highlights. Colorado began allowing the sale of recreational marijuana on January 1 to anyone age 21 or older. Residents can now buy marijuana like alcohol -- except the cannabis purchase is limited to an ounce, which is substantial enough to cost about $200 or more.
Cannabis in Colorado. Cannabis in Colorado refers to cannabis (legal term marijuana) use and possession in Colorado, United States. The Colorado Amendment 64, which was passed by voters on November 6, 2012, led to legalization in January 2014. The policy has led to cannabis tourism.