Thus the young settlement got its name. Receiving large accessions by immigration, it soon grew into activity, and outstripping Easton, became the commercial depot of the Upper Delaware and the Lehigh, sending missionaries among the Indians, and during the Revolution was a busy manufacturing town. For the first thirty years it was a pure "commune," the church elders regulating the labor of all the people, and afterwards, until 1844, the church council of the "Congregation" ruled everything, this exclusive system being then abandoned. Proceeding up a winding highway from the river, the old "Moravian Sun Inn" is passed, the building, dating from 1758, being modernized; and mounting the higher hill above the Main Street, the visitor soon gets into the heart of the original Moravian Colony, among the ancient and spacious hip-roofed, slate-covered stone houses, with their ponderous gables. Though dwelling in communism, the Moravians strictly separated the sexes in house, street, church and graveyard, taking good care of the lone females, whether maidens or widows. Here are the "Widows' House" and the "Single Sisters' House," quaintly attractive with their broad oaken stairways, diminutive windows, stout furniture and sun-dials, tiled and flagged pavements, low ceilings, steep roofs and odd gables. The "Sisters' House" was built in 1742. The "Congregation House" and "Theological Seminary" are also here; and, best known of all, the Moravian "Young Ladies' Seminary," an extensive and widely celebrated institution, dating from 1749, whose educational methods are those founded by the noted John Amos Commenius, who flourished in the seventeenth century, and whose life-size portrait bust is sacredly preserved in the school, as is also the old sun-dial of 1748 on the southern front of one of the buildings.