In the mid-1870s Mary Baker Eddy founded the Church of Christ, Scientist, based in Boston.
Eddy’s Christian Science teachings grew out of her own experience of using her faith in God to cure her physical problems, which had kept her bedridden for years.
Her central belief was that only the spiritual is real, there is no material reality.
In particular, she argued that sickness and pain are illusions, and thus can be overcome by prayer and faith in God.
Eddy also started a major newspaper, the Christian Science Monitor.