Tinicum Island(tĭn`ĭkəm), area in the Delaware River, SW of Philadelphia, separated from the mainland by creeks and marshes. Site of the first European settlement in Pennsylvania, it was the capital of New SwedenNew Sweden,
Swedish colony (1638–55), on the Delaware River; included parts of what are now Pennsylvania, New Jersey, and Delaware. With the support of Swedish statesman Axel Oxenstierna, Admiral Klas Fleming (a Finn), and Peter Minuit (a Dutchman), the New Sweden Company
..... Click the link for more information. from 1643 to 1655.