Not necessary, true.
Yet Jesus Christ did have His life, teachings, words and deeds historically documented just the same through the prophets, the Apostles, Disciples, and many other eyewitnesses.
Btw -- can you point to a single Biblical prophecy that has been proven wrong?
Chrstianity is a false religion unauthorized by the Torah.
Btw -- can you point to a single Biblical prophecy that has been proven wrong?
Many prophecies are conditional, such as the prophecy of Jonah. Jonas said Nineveh would be overthrown. He didn't say "unless you repent;" he simply said it was going to be overthrown in a matter of days. Yet when the king ordered national repentance G-d relented.
The "fulfilled prophecies" of the "new testament" are only "fulfilled prophecies" if you begin with an a priori assumption that the "new testament" is true. You are saying "J*sus fulfilled such and such a prophecy because the 'new testament' says he did." You are "proving" chrstianity by assming its truth from the outset. This is a logical fallacy known as "affirmation of the consequent."