Great Disappointment

The Great Disappointment in the Millerite movement was the reaction that followed Baptist preacher William Miller's proclamations that Jesus Christ would return to the Earth in 1844, what he called the Advent. His study of the Daniel 8 prophecy during the Second Great Awakening led him to the conclusion that Daniel’s “cleansing of the sanctuary” was cleansing of the world from sin when Christ would come, and he and many others prepared, but October 22, 1844 came and they were disappointed.

These events paved the way for the Adventists who formed the Seventh-Day Adventist Church. They contended that what had happened on October 22 was not Jesus’ return, as Miller had thought, but the start of Jesus’ final work of atonement, the cleansing in the heavenly sanctuary, leading up to the Second Coming.

Between 1831 and 1844, on the basis of his study of the Bible, and particularly the prophecy of Daniel 8:14—"Unto two thousand and three hundred days; then shall the sanctuary be cleansed"—William Miller, a Baptist preacher, predicted and preached the imminent return of Jesus Christ to the earth. He first assumed that the "cleansing of the sanctuary" represented purification of the earth by fire at Christ's Second Coming instead of the sanctuary in Heaven.

Using an interpretive principle known as the day-year principle, Miller, along with others, interpreted a prophetic "day" to read not as a 24-hour period, but rather as a calendar year. Miller became convinced that the 2,300-day period started in 457 B.C. with the decree to rebuild Jerusalem by Artaxerxes I of Persia. His interpretation led him to believe and promote the year 1843.

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