The United States Of America, Part Five. This is the story of how the American Republic developed from colonial beginnings in the 16th century, when the first European explorers arrived, until modern times.
Medical marijuana is now legal in 20 states and the District of Columbia. Of those states, Washington and Colorado have legalized marijuana for recreational use. Colorado's first retail marijuana stores opened Jan. 1 for sale to people 21 years and older. Under federal law, marijuana is still an illegal drug.
Our Terms of Service and Privacy Policy have changed. By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service. Medical marijuana now legal in 24 states. Pennsylvania just became the 24th U.S. state to legalize medical marijuana. Governor Tom Wolf approved the measure Sunday, allowing the sale and consumption of cannabis for treating specific diseases or symptoms.