Articles with keyword "Pennsylvania"
What we think we know about the arrival of Homo sapiens on this continent.
Historically, iron foundries could fire the imagination or soothe the visual palate.
How an art-loving physician named Albert C. Barnes took revenge on the critics by building a collection barred to them.
Thaddeus Stevens was a fearsome reformer, who never backed down from a fight.
The Exhibition Hall at the Wagner Free Institute of Science in Philadelphia, with its original systematic scheme of cherry-wood cabinets dating from the 1880s, provides a rare view of a Victorian scie