Rittenhouse Farm
West Norriton Township, Montgomery County, Pennsylvania
Marker Inscription
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.
Erected by Pennsylvania Historical and Museum Commission
The Story
David Rittenhouse, one of colonial America's foremost men of science, farmed near this spot and pursued astronomy with instruments he built by hand. He is credited with constructing what many consider the first telescope made in America, and in 1769 he joined an international scientific effort to observe the transit of Venus across the sun. His careful measurements helped place American science on the world stage before the Revolution.
Why it matters
Rittenhouse embodied the Enlightenment ideal that a self-taught American farmer could contribute to the frontiers of world science, a point of pride for the young nation.
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Related people
- · David Rittenhouse
Related events
- · Transit of Venus (1769)
Themes & tags
Nearby & related markers
Rittenhouse Farm
East Norriton Township, PA · est. 1949
David Rittenhouse, born in 1732, spent his early life on this farm, where he launched one of colonial America's most remarkable scientific careers. A self-taught clockmaker and astronomer, he built precise instruments and in 1769 computed and observed the transit of Venus across the sun—a globe-spanning effort to measure the solar system that placed American science on the world stage. He later moved to Philadelphia, serving the young republic until his death in 1796.
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Mill Grove
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