Or has it ended?
Good question! Hopefully, the reformation of God’s original Church is an active process. The fact of the matter is, though it would be the simplest solution to the matter and, therefore, is viewed as very desirable, the claim to sole ecclesiastical infallibility of the Catholic Church does little to convince me (and many others) that its doctrines are all, 100% Scripturally sound. I am willing to admit that every denomination, or nondenomination, for that matter, is imperfect in doctrine due to the fallen nature of the humans interpreting the Scriptures, who are unable to, with perfect clarity and ease, discern between fallacy and pure Truth in many parts of the Word. However, our understanding here on earth does not HAVE to be perfect. After all, do we not all know that we are saved by faith in the redemptive work of our God and Savior, Yeshua Messiah (Rom. 1:17, 2:23-24)? Do we not all know that baptism is that sacred rite by which, as was commanded by him, we are saved, cleansed, and admitted into his Church (alright, some may deny this, but they forsake the Scriptures: Matt. 28:19, 1 Peter 3:21). Do we not agree Christ is true God, true Man (Jn. 1:1, Phil. 2:6-8), the One and Only of God (John 1:18, 3:16), Son of the Virgin Mary (Matt. 1:18, Lk. 1:28) that he died voluntarily in our stead, to bring a right, restored relationship with our Maker (2 Cor. 5:21, Rom. 5:10-11, Heb. 10:19)?
Is there a time frame you can point to that is the beginning of your own denomination?
I, in the most technical sense, do not belong to any denomination. I do not believe in divisions within the Church. I would say non-denominationalism, though, is fairly modern in its current form, yet has its direct link to the Early Church via the holy Scriptures.
If so, did your denoms teachings develop or were they derived from purging “untruths” from the Catholic Church and/or the first reformers ideas?
It had more to do with restoring the unity of the Catholic Church without the false pretense of infallibility.