https://uncorrelatedmormonism.com/did-the-first-vision-actually-happen/
In Mormonism today, the First Vision is described as the single most important event in modern times. It signaled a change in God’s dealings with his children and an ushering in of a new age of religious teachings. The interesting thing however is the First Vision itself was almost completely unknown during the life of Joseph.
00:00 Introduction
00:24 No mentions
06:52 Oliver's account
11:13 Other visions
15:13 D&C 20
18:48 3 Nephi 15
23:53 D&C 84
27:47 Conclusion