Armstrong County
Formed March 12, 1800 out of Westmoreland, Allegheny, and Lycoming counties. Named for Gen. John Armstrong, who had destroyed the Indian Village at Kittanning, 1756. Here, county seat was laid out, 1803, and "Daugherty Visible" typewriter invented in 1881.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesDigital Commonwealth, Boston Public Library
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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