
Rapp and his group of believers began meeting in Iptengen and eventually emigrated to the United States, where they established three communities: Harmony, Butler County, Pennsylvania Harmony (later named New Harmony), Posey County, Indiana and Economy, Beaver County, Pennsylvania. His "strong personality" and religious convictions began to concern local church authorities when he refused to attend church services or take communion. Born in Iptingen, Duchy of Württemberg, Germany, Rapp was a "bright but stubborn boy" who was also deeply religious. Johann Georg Rapp (1757–1847), also known as George Rapp, was the founder of the religious sect called Harmonists, Harmonites, Rappites, or the Harmony Society. Johann Georg Rapp ( George Rapp) 1757–1847 The Society is best known for its worldly successes, most notably the establishment of three model communities, the first at Harmony, Pennsylvania the second, also called Harmony, in the Indiana Territory, now New Harmony, Indiana and the third and final town at Economy, now Ambridge, Pennsylvania. Members were known as Harmonists, Harmonites, or Rappites. Under its founder and spiritual leader, Johann Georg Rapp (1757–1847) Frederick (Reichert) Rapp (1775–1834), his adopted son who managed its business affairs and their associates, the Society existed for one hundred years, roughly from 1805 until 1905.

On February 15, 1805, the group of approximately 400 followers formally organized the Harmony Society, placing all their goods in common. Due to religious persecution by the Lutheran Church and the government in Württemberg, the group moved to the United States, where representatives initially purchased land in Butler County, Pennsylvania.

The Harmony Society was a Christian theosophy and pietist society founded in Iptingen, Germany, in 1785. The Harmony Society church in Old Economy Village, Pennsylvania
