Union Canal (Pennsylvania)
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What links here
David Rittenhouse
Benjamin Smith Barton
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Swatara Creek
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Transit of Venus
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Coinage Act of 1792
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Music history of the United States during the colonial era
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Wissahickon Creek
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Clockmaker
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Franklin stove
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André Michaux
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Dollar coin (United States)
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Dime (United States coin)
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United States Mint
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Charles Willson Peale
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Music of Pennsylvania
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Emission spectrum
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German Americans
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American Philosophical Society
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Colonial history of the United States
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Armin Shimerman
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Germantown, Philadelphia
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Science and technology in the United States
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John Sellers (surveyor)
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Mason–Dixon line
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List of astronomers
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Benjamin Banneker
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Joseph von Fraunhofer
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First Bank of the United States
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Diffraction grating
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1732
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1796
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April 8
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