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.
On March 4, 1681, Charles II of England granted the Province of Pennsylvania to William Penn to settle a Â£16,000 (around Â£2,100,000 in 2008, adjusting for retail inflation) debt the king owed to Penn's father. Penn founded a proprietary colony that provided a place of religious freedom for Quakers. Penn named the colony Pennsylvania after his family, Penn, and the Latin word for woods, sylvania. Penn landed in North America in 1682, and founded the colonial capital, Philadelphia, that same year.