Evidence: The Gathering

[Wyrd of Gawd]

That's written in the modern Greek alphabet so it was written after 1450.  Besides, if it had been written in the 4th Century the centuries of temperature and humidity fluctuations would have destroyed the vellum.  It's a fake!!

And you know this better than those who have studied the actual document because....?

Look at the characters.  They are written in the modern Greek alphabet.  You can easily verify it for yourself.  Check out Ancient Scripts: Greek.  And as I said, the vellum would have deteriorated because of the changes in temperatures and humidity over the past 14 to 16 centuries.

"Preservation[edit]
True vellum is typically stored in a stable environment with constant temperature and 30% (± 5%) relative humidity. If vellum is stored in an environment with less than 11% relative humidity, it becomes fragile, brittle, and susceptible to mechanical stresses; if it is stored in an environment with greater than 40% relative humidity, it becomes vulnerable to gelation and to mold or fungus growth.[11] The optimal temperature for the preservation of vellum is 20 ± 1.5 °C (68 ± 2.7 °F).[citation needed]"
https://en.wikipedia.org/wiki/Vellum