[SuziQ]

That is always a good practice but if you're going to be honest about that you will have to acknowledge that they did not teach that Mary was sinless or was assumed into Heaven.

How else would that tradition have started? BTW Mary's home in Ephesus is still an honored site, even by the Muslims who live there, who honor Mary as the mother of Jesus.

[what's up]

How else would that tradition have started?

What do you mean? Any number of ways. Lots of traditions were started apart from the Apostles' teaching.