Sola scriptura, anyone?
Where is that tradition?
How long did it take to grab hold?
How long did it take to declare anyone who even questions the assumption face the wrath of God?
Forgive those who look at the TRADITION of the Apostles and early Christians and not find a belief central to salvation, which Pius XII clearly states.
Are you another one of those RCC who do not read their earthly rulers proclamations?
I was once a proud member of the RCC, Pius XII thankfully woke me up in my slumber.