People didn’t make many written records of New Testament events until a few centuries after Jesus ascended.
WHAT?
The Gospels were written letters passed from church to church and copies made.
Your reference is for the printing press?
The very last chapter of Revelation written by the John, one of the original twelve Apostles, warns against adding to or taking away from the Scriptures up to that point. Nothing written after around 95 AD, the lastest time Revelation could’ve been written, can be considered the Word of God.
No.
Parts of the New Testament were written within 20 years of Jesus’s death.
That would be...wrong.
1 Corinthians can be dated to the late 40s to early 50s.
Not really.
The synoptic gospels were written between 50 to 70 AD as were the letters of Paul, Peter, james and most of John as well as the book of Revelation.
The gospel of john was the last book of the new testament written, closed around 80 to 90 AD.
None of the 73 books of the Bible were written after 90 AD
Most Bible scholars would put the writings of the New Testatment between 50 A.D. and 100 A.D. With Revelations closing the Book.