[metmom]

So, essentially, you are saying the earlier popes were wrong about the assumption of Mary being heresy.

How is that being led by the Holy Spirit?

How do you know what else from them they might have been wrong about?

[ronnietherocket3]

So, essentially, you are saying the earlier popes were wrong about the assumption of Mary being heresy.

Where do any Popes state that it is heresy to believe the Assumption? Keep in mind this must be a condemnation specifically of the Assumption. If it is a condemnation of a group, keep in mind that would mean the Church can't teach that Christ was crucified, as the Arians believed this (their problem was in denying the divinity of Christ).