Picking a date in the past is not prophecy...
You’re really grasping at thin air. Carry on.
I don’t see anything special about 100 AD to warrant basing your entire position on it.
Absence of evidence!= evidence of absence.
Affirmation of the doctrine of communion of saints has been proven back to the 4th century, with documents existing confirming it’s practice.
No documents exist confirming your opinion prior to Luther.