Sumerian (Atrahasis), Babylonian (Epic of Gilgamesh), Hindu, Greek, Indigenous traditions — all involving a great flood sent by the gods and a chosen survivor or survivors. That’s a cross-cultural pattern, not isolated to one text. To those that don't understand how the Bible was written, it was basically basing real events and people using pseudonyms (like Moses to which there's no evidence he existed or the Israelites were captives in Egypt, although there was the Hyksos expulsion, which were a Canaanite group; the scribes wrote the law and there's no evidence Moses existed) to teach moral lessons. The Black Sea deluge was a catastrophic flooding when the rising Aegean Sea waters breached the Bosporus, turning a freshwater lake into a sea, killing and displacing neolithic farmers, and burying an ancient civilization (underwater excavations and surveys off the Turkish Black Sea coast have revealed well-preserved remains of ancient, submerged,, and sunken structures, including timber-framed buildings and artifacts. These discoveries are widely cited as evidence of a rapid, catastrophic drowning of the coastal landscape, frequently associated with the "Black Sea Deluge Hypothesis" circa 5600 BCE, which posits that rising Mediterranean waters breached the Bosporus, turning a freshwater lake into the saline Black Sea). But even then, it was a regional flood, not worldwide like the Bible said.
In fact, Jesus even spoke in parables. It was to convey a moral lesson. I'm an IFB (Independent Fundamental Baptist). I believe in the Big Bang, but I also believe that God caused it. Obviously, I don't believe the world is flat or there was a worldwide flood that nobody's heard about.
