context: Founded by William Penn in 1682, William Penn has been one of the most important cities in the United States politically, culturally and economically throughout its history. The city signed the US Declaration of Independence in 1776 and also served as the capital of the United States from 1790 to 1800. Although New York and Washington overtook it as centers of economy and politics, Philadelphia retained its status as a significant regional industrial center. Today, its economy is diverse, with information, medical research and services being key areas. Tourism is also an important player, as few US cities have as many historical attractions.
question: When was Philadelphia Founded?
answers.text: 1682