...and for over 1500 years couldn't because they didn't know Latin? Wasn't that the entire big deal about the King James Version of the Bible? It was written in English for anyone to read and recognized as an official version? As the link notes, there were earlier attempts but those were shut down for one reason or another.
https://en.wikipedia.org/wiki/King_James_Version
The King James Version (KJV), also known as the King James Bible (KJB)[1] and the Authorized Version, is an English translation of the Christian Bible for the Church of England, commissioned in 1604 and completed and published seven years later in 1611 under the sponsorship of James VI and I.[
Martin Luther's project was to make the Bible accessible in vulgate languages to all laity. His vision was a priesthood of all believers, and that the Bible would be the sole inerrant authority for Protestantism. King James bible was the attempt across the Channel to introduce a vulgate bible to England.
In Roman Catholicism and Eastern Christianity, the bible is not held out as the sole inerrant authority. Church tradition, ecclesiastical authority, the writings of the Church fathers, and papal bulls are given equal religious weight as the writings in the Bible.