“The Serenity Prayer” is the common name for a prayer written by the American theologian Reinhold Niebuhr, born in 1892. Niebuhr, who first wrote the prayer for a sermon at Heath Evangelical Union Church in Heath, Massachusetts, used it widely in sermons as early as 1934 and first published it in 1951 in a magazine column. The prayer spread through Niebuhr’s sermons and church groups in the 1930s and 1940s, and was adopted and popularized by Alcoholics Anonymous and other twelve-step programs.