PHILADELPHIA, PENNSYLVANIA—More than 80,000 artifacts at the site of the former visitors center at Independence National Historical Park have been unearthed in excavations over the past three years, according to a report in Philly Voice. The excavations, which were carried out by archaeologists from Commonwealth Heritage Group, have turned up unusually thorough evidence of the development of Philadelphia over three centuries. "Cities change; cities are so dynamic," said archaeologist Rebecca Yamin. "On this site we have captured that change.” Their findings include evidence of eighteenth-century taverns, nineteenth-century print shops, and a twentieth-century button factory. One standout find is an eighteenth-century punchbowl that depicts the Triphena, a brigantine ship that carried a message to Great Britain in an attempt to foment opposition to the 1765 Stamp Act, which imposed some of the taxes that led to the American Revolution. Other artifacts found at the site include wig curlers, marbles, lead weights, and window glass with people’s names etched into it. For more, go to “Letter from Philadelphia: City Garden.”