What I don't get is how William Miller and the Baha'is start counting 2300 years from decree to rebuild Jerusalem in 457BC. Here's what it says in Daniel...
Daniel 8:8 The goat became very great, but at the height of its power the large horn was broken off, and in its place four prominent horns grew up toward the four winds of heaven.
9 Out of one of them came another horn, which started small but grew in power to the south and to the east and toward the Beautiful Land. 10 It grew until it reached the host of the heavens, and it threw some of the starry host down to the earth and trampled on them. 11 It set itself up to be as great as the commander of the army of the Lord; it took away the daily sacrifice from the Lord, and his sanctuary was thrown down. 12 Because of rebellion, the Lord’s people and the daily sacrifice were given over to it. It prospered in everything it did, and truth was thrown to the ground.
13 Then I heard a holy one speaking, and another holy one said to him, “How long will it take for the vision to be fulfilled—the vision concerning the daily sacrifice, the rebellion that causes desolation, the surrender of the sanctuary and the trampling underfoot of the Lord’s people?”
14 He said to me, “It will take 2,300 evenings and mornings; then the sanctuary will be reconsecrated.”
I really don't see how any of that has anything to do with the decree to rebuild Jerusalem. Naturally, Baha'is are just fine with it, because it gets them to 1844.