Rittenhouse Farm
David Rittenhouse, colonial scientist, astronomer, and instrument maker, lived on a nearby farm, where he built a telescope, said to be first made in America, and observed the transit of Venus in 1769.
Digital Commonwealth, Boston Public LibraryDavid Rumsey Map Collection, Stanford LibrariesDigital Commonwealth, Boston Public LibraryDigital Commonwealth, Boston Public LibraryDigital Commonwealth, Boston Public Library
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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