Thanks for your reply. However, IMO (humble) your evidence is sparse. I did say "...no evidence of a unanimous, or even majority, belief in the RCC concerning the Assumption of Mary in the early Church up to, and including, relatively modern times."
Please note I qualified my claim to the RCC. The Orthodox may have somewhat earlier, though not numerous, beliefs in the assumption but even then it was not until the 4th century that it saw the light of day.
Scripture is silent on the life, death, and assumption of Mary after the ressurection.
The Early Church Fathers were silent on the life, death, and assumption of Mary after the ressurection.
The case cannot be made for "Apostolic Tradition".
“The Orthodox may have somewhat earlier, though not numerous, beliefs in the assumption but even then it was not until the 4th century that it saw the light of day.”
But since the 300s, we have, virtually all of us, believed firmly that the Most Holy Theotokos was assumed bodily into heaven. As I said, however, this is NOT dogma in The Church in the East and thus all of us are free not to believe it.
Here is a late (14th century) sermon on the Dormition by one of the greatest Fathers of The Church, +Gregory Palamas. I post it to you because it is best sermon on the doctrine I am aware of and it is particularly scriptural.
http://www.ocf.org/OrthodoxPage/reading/dormition.html