I just want to add that the early memories I am recalling right now from when I was in in the crib and in the hospital are from age two..one memory may be younger than two since I was standing and teething on the crib side rail. I was alone in all of them except for one...so no one could have told me about them or planted a false memory. I am certain these are memories.
Of course we are all different..what's possible for one person may not be true for anyone else.