One could continue to marvel at the age of P52...the new testament fragment...dated into the early second century, thus being kind of a "product of second generation" Christians I say cheaply in my ingnorance...and therewith very close to "it's times"
Oldest full manuscript/OT of the Jews is dated around 1000 AD...Qumran kind of being preserved by GOD himself...or fortune..if one prefers
With the Koran it's difficult to say from the little I know...same with Buddhism...with the former it is said to have a longer oral tradition...input's welcome
But I was focussing on the Avesta (I focused on the Parsis in some googling) and it surprised me to learn/remember, how little of the earlier amount could be preserved...due to all kinds of circumstances...meaning...very much got lost...burned...whatever
I say that directly hinted at the fuss Bible/NT
critics think of being able to create (without impressing me...as far as the genuineness etc of the text is concerned)...please note what is said about the first Avesta (in portion)-translation is said..made by a young Frenchman...sounds very familiar.
I think critics also need a job...putting it bluntly