The term 'Adventist' refers to a religious denomination that follows the teachings of the Bible and the writings of Ellen G. White. Ellen G. White was an American religious leader who founded the Seventh-day Adventist Church in 1863. The church emphasizes the imminent Second Coming of Jesus Christ and encourages its members to live a life of holiness and service. The Adventist Church has grown to become one of the largest Protestant denominations in the world, with over 20 million members worldwide.