Recorded = Original Writings
Mss = Manuscripts (copies)
Tell visitors more about what you do
Only 10 copies of Ceasar's work have been found by scholars and seven of Plato's yet these are considered authoritative.
There are more than 15,000 manuscripts of New Testament writings. Unlike for example The Iliad which has one of the shortest gaps from the original (500 yrs) in ancient world writings... the most conservative estimates of New Testament copies are within 100 years and some much less.
To be sceptical of the New Testament books would require you to allow all of classical antiquity to slip into obscurity.
No documents of the ancient period are as well attested bibliographically as the New Testament.
Next: Bible's Books