This is the first home Mary Baker Eddy, discoverer and founder of Christian Science, owned. Mrs. Eddy purchased the Italianate style house at 8 Broad Street in 1875. Mary Baker Eddy, Discoverer and Founder of Christian Science, purchased the Italianate style house at 8 Broad Street in 1875. It was the first home she had ever owned. While residing in this house she published her primary work Science and Health with Key to the Scriptures and founded the Church of Christ, Scientist. In 1907, Human Life Magazine proclaimed Eddy “the most famous, interesting and powerful woman in America, if not the world, today. The house is owned and maintained by Longyear Museum, Chestnut Hill, MA. One mile north on Rte 1A in Swampscott is the house where Eddy stayed 10 years earlier.