Christian Science is a set of beliefs and practices which are associated with members of the Church of Christ, Scientist. Adherents are commonly known as Christian Scientists or students of Christian Science, and the church is sometimes informally known as the Christian Science church. It was founded in 19th-century New England by Mary Baker Eddy, who wrote the 1875 book Science and Health with Key to the Scriptures, which outlined the theology of Christian Science. The book became Christian Science's central text, along with the Bible, and by 2001 had sold over nine million copies.
Eddy and 26 followers were granted a charter by the Commonwealth of Massachusetts in 1879 to found the "Church of Christ (Scientist)"; the church would be reorganized under the name "Church of Christ, Scientist" in 1892. The Mother Church, The First Church of Christ, Scientist, was built in Boston, Massachusetts, in 1894. Christian Science became the fastest growing religion in the United States, with near