Although expectations were heightened when a comet suddenly appeared in the night sky in March 1843, they felt the brunt of the disappointment when the predicted Second Coming did not occur in March 1844.
After Miller confessed his error and left the movement, his follower Samuel Snow suggested a new date, Oct. Christ’s failure to return at that time has since been known in Adventist circles as the Great Disappointment.
The Adventists’ emphasis on the Second Coming led many of them to predict the date of its occurrence. Primarily on the basis of his interpretation of Daniel , which spoke of 2,300 days, he concluded that Christ would return about 1843.
While most Adventist groups remain relatively small, the Seventh-day Adventist Church has become a significant global body, with congregations in more than 200 countries and a membership of more than 14 million.The Seventh-day Adventists accepted Old Testament dietary regulations, from which their present-day emphasis on health developed. (The sanatorium’s many prominent patients included C. Post, later the founder of the Postum Cereal Company.) The church’s emphasis on healthy living and preventive medicine was augmented by the founding in 1908 of a chain of outstanding medical institutions.The church became a pioneer of medical missions, establishing hundreds of hospitals, medical centres, clinics, and sanatoriums across the United States and throughout the world.During the 1990s the Worldwide Church of God engaged in a process of doctrinal reevaluation that led it to renounce the beliefs it had inherited from Adventism and join the larger Evangelical movement.Belief in Sabbath observance brought with it a new appreciation of the Hebrew Bible (the Old Testament). Kellogg, founded the Sanitas Food Company, later called the Kellogg Company, to market a healthy breakfast cereal that had been served at a church sanatorium run by John Harvey Kellogg.