Adventism

Adventism is a Christian movement that originated in 19th-century United States, centered on the imminent return of Jesus Christ and the observance of the seventh-day Sabbath. It grew from the Millerite expectation of Christ’s near return in the 1830s and 1840s; after the Great Disappointment of 1844, several groups formed, the largest of which became the Seventh-day Adventist Church in 1863.

Most Adventist bodies affirm the Bible as authority, the future return of Christ, and a Sabbath kept on Saturday. A distinctive feature is an eschatological framework that includes an investigative judgment beginning in 1844. Adventists also emphasize healthful living, education, and humanitarian work, and have developed a global system of churches, publishing houses, hospitals, and schools. Ellen G. White, a prominent early figure, is regarded by many Adventists as a prophetic guide; her writings are influential but not considered canonical on the level of the Bible.

Adventism is not a single denomination but a family of groups, the largest being the Seventh-day Adventist Church with millions of members worldwide. Other groups include Advent Christian Church and various Church of God (Seventh Day) bodies. The movement is global and active in mission, publishing, and social services.