How cannabis is consumed. In a 2010 National Survey on Drug Use and Health (NSDUH), 17.4 million people in the United States said they had used marijuana in the past month. According to the survey, marijuana is the most commonly used illegal drug.
Now the largest city in Pennsylvania, Philadelphia served as the nationâs capital from 1790 until a permanent capital was established in Washington, D.C., in 1800. Both the Declaration of Independence and the U.S. Constitution were signed in Philadelphia.
Later, in October 1682, the Proprietor arrived in Pennsylvania on the ship Welcome. He visited Philadelphia, just laid out as the capital city, created the three original counties, and summoned a General Assembly to Chester on December 4.