People who call themselves Christians may show or live their faith in different ways. They may also believe different things. Through history the ten main groups or "denominations" of Christianity have been the (Eastern) Orthodox, the Church of the East (Nestorian), the Oriental Orthodox (Miaphysite), the Catholic, the Anglican, the Lutheran, the Reformed, the Anabaptist, the Evangelical, and the Nontrinitarian churches. These latter six are often grouped together as Protestant, but Nontrinitarians are also more commonly grouped separately. Not all Christians use these titles. Some believe Christianity is bigger and includes others. Some believe Christianity is smaller and does not include all these churches.