This is actually quite excellent from Wikipedia on Herbert W. Armstrong:
Armstrong's wife encounters Church of God (Seventh Day)
A history of the True Religion Traced From 33 A.D. to Date, by A. Dugger and C.O. Dodd [PDF]
We're happy to announce that the Third Temple will soon grace the Temple Mount and serve as a royal House of Prayer for ALL Peoples who yearn to love and obey and learn more about the God of Jacob.