Zone1 how old is christianity?

[Blues Man]

Those aren't 'similarities'. They don't resemble the OT's books in any significant way. We see lots of claims they do, but never any real proof, just conflations and weird attempts to claim they're similar. Even the Mayans had their 'Flood' myths, but somehow nobody claims they got theirs from Ur, or the Chinese or anybody else. Flood stories would be prevalent among any region where fossils exist and get noticed, for instance, and Mountains in the ME, Himalayas, and all over the planet have marine fossils at pretty high elevations, so yeah, these myths are perfectly likely to originate separately anywhere.

We know a lot of pagan Greek myths were altered in ancient times to compete with the rise of Christianity's popularity as well, to be 'similar', and this would be true of cultures who imitated the Hebrews' theology as well.

Virgin Birth similarity
One god Similarity

And flood myths had nothing to do with religion floods happened , earthquakes happened, natural disasters happened.

Gods were used as a way to explain why they happened