Ambridge, PA, United States
Old Economy Memorial. Maintained by the Pennsylvania Historical and Museum Commission as a State memorial to the Harmony Society, organized February 15, 1805, dissolved December 15, 1905. These buildings erected 1824-1831, comprise a portion of the third settlement by the society. 1st Settlement - H
armony, Butler Co., Pa., 1804-15. 2nd Settlement - New Harmony, Posey Co., Ind., 1814-25. 3rd Settlement - Economy, Beaver Co., Pa., 1824-1905.
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