21. G . P . Grant was joined by Dawson and Dolphijn to spread Adventism along the coastal towns of Ghana 22. After the " Great Disappointment " of October 22, 1844 many people in the movement gave up on Adventism . 23. Adventism is rooted in Restorationism combining elements from Lutheran, Anabaptist and Methodist or Wesleyan / Arminian branches of Protestantism.24. At least by that year he left Adventism for Age-to-Come faith, a form of British Literalism. 25. Detailed study of Adventism by doctoral candidates has been occurring since at least Everett N . Dick's 1930 dissertation. 26. The evangelical Christian Research Institute has offered " a hand of fellowship and encouragement " to what they describe as Evangelical Adventism . 27. Joseph Bates was one of the three primary founders of Seventh-day Adventism ( along with James and Ellen White ). 28. :: : : : " Walter Veith is the leading conspiratory voice within Adventism , followed by Bill Hughes and others. 29. Later on Martin planned to write a new book on Seventh-day Adventism , with the assistance of Kenneth R . Samples. 30. The Morris and Whitcomb position is distinct from Seventh-day Adventism because they postulate both a young earth and a young universe.