How the Seventh-day Adventist Church Was Started

In the 1830s, a Baptist lay preacher named William Miller began publicly sharing conclusions from his own careful study of Bible prophecy, particularly the time prophecies in the book of Daniel. Miller became convinced Christ's return was near, and his preaching sparked what became known as the Millerite movement — tens of thousands of people across multiple denominations in North America who began anticipating Christ's soon return.

Miller and his associates eventually settled on October 22, 1844 as the expected date. When the day passed without the anticipated event, the resulting letdown among believers was so severe that history simply calls it the Great Disappointment. Many walked away from the movement entirely. For a full look at how the small group who remained came to understand what actually happened that day, see Understanding the Judgment Message of Daniel 8:14.

Rather than abandoning their study of prophecy altogether, a small band of former Millerites kept meeting, praying, and comparing Scripture together in the months that followed. Farmer Hiram Edson, walking through a field the morning after the disappointment, became convinced the date itself had been correct but the event misunderstood — a conviction that set this small group on a fresh, careful study that would eventually shape the movement's core identity.

Three people did more than anyone else to shape what came next. Joseph Bates, a retired sea captain, brought conviction about the seventh-day Sabbath to the group. James White became the movement's organizer and publisher, launching the paper that would grow into the church's official publishing arm. And Ellen Harmon, who married James White in 1846, began receiving what the group came to recognize as a genuine prophetic gift, detailed further at What Did Ellen White Say About...? Together with a wider circle of believers, they held the group together through its most uncertain years.

Through Joseph Bates's influence, and Seventh Day Baptist believer Rachel Oakes Preston, who first introduced Sabbath-keeping to this circle of Millerites in Washington, New Hampshire, the group became convinced Scripture pointed to Saturday, not Sunday, as the biblical Sabbath. Known informally for years afterward as Sabbatarian Adventists, the group formally adopted the name "Seventh-day Adventist" in 1860, combining its two defining convictions into a single identity.

What had been a loose network of independent congregations formally organized as the General Conference of Seventh-day Adventists on May 21, 1863, in Battle Creek, Michigan, with roughly 3,500 members. That small beginning is where this story ends and a much larger one begins — see History of the Adventist Church Over the Years for how it grew from there into a worldwide movement, including humanitarian work in more than a hundred countries through the Adventist Development and Relief Agency (ADRA).