The Unitarian Society was originally part of the Congregational church that was organized in Burlington, Vermont on February 23, 1805. However, in 1810, the Congregational Society divided into the Trinitarian or Calvinistic Society, which embraced the doctrine of the Trinity, and the Unitarian Society, which rejected it. The Rev. Daniel Haskel was ordained over the Trinitarian society on April 10, 1810, where the Rev. Samuel Clark was ordained over the Unitarian Society on April 19 of that year. The laying of the cornerstone of the Unitarian church occurred around the 1st of May in 1816, with the remainder of the construction taking about seven months to complete at an approximate cost of $23,000, including the clock, bell, and organ. In December of that year, the pews of the lower floor were sold "for upwards of $21,000". The Unitarian Society appointed E.T. Englesby as the superintendent to officiate the completion of the building. The Burlington Northern Sentinel issue of December 27, 1816 described the church as "91 feet in length, 60 in breadth, with a steeple of 170 feet in height". The Church was dedicated on January 9, 1817. In 1910, prompted by a letter from historical researcher from Boston, the Burlington city treasurer L.C. Grant had discovered that the original bell for the church was cast by Paul Revere on October 13, 1816. The bell weighing, along with its tongue weighing was sold to the Town of Burlington for $592.65. The bell was recast in 1828, and was replaced sometime in the 1900s after a crack had developed. In August 1954, the church steeple was struck by lightning that unknowingly caused extensive deterioration over the course of the ensuing sixteen months, until it was revealed that the base had settled and tilted eastward by approximately two feet. By 1956, the decision was made to demolish the steeple, which took about six weeks to complete. Steeplejacks out of Framingham, Massachusetts managed to salvage the windows, bell, and pieces of metal sheathing during the process. A replacement spire was completed and dedicated in September 1958. The presiding pastor of the time, the Rev. Robert S. Miller had commented that the project was financed by a $55,000 fund drive"to which people of nearly all faiths contributed".
