1844 - AHHHHHHHHHHHHHH!!!! That was come from William Miller, the baptist minister.
He was the false prophet. Because, he annoucned his congregations that Christ will come at midnight in September or October 1844. So, they believed him. They did came to gathering together outside join with William Miller. They were watch up in the sky waiting and waiting for Christ to be appear all night till sunrise. Christ didn't come. They were upset and disappoint with him. His church got into split.
That young teenger girl was with them, later established Seventh Advent Church.
That is sort kind of cult.
Because SDA doesn't believe in literal eternality hell of fire. And, they believe when Christ comes, we will STAY UP in heaven for 1,000 years while earth is desert (quiet) same time.
And several other teachings of SDA is no common sense.
We better be careful what we listening what men saying. Their teachings could be twists and errors. We rather follow the Holy Spirit's guide, and also depend on Bible only.
Rev. 22:20 -Amen!