Plural historical floods (Dalamatia 162 years after rebellion, Eden sinking, Mesopotamian regional floods) = Universal flood traditions across ~300 world cultures

Historical Evidence(Moderate evidence)

Alan Dundes' The Flood Myth collects flood narratives from nearly every continent, arguing the tradition is too widespread for local explanation alone. William Ryan and Walter Pitman's Black Sea hypothesis proposed a specific catastrophic inundation of the Black Sea basin around 5600 BCE as a partial historical anchor. Patrick Nunn's work on Aboriginal coastal-inundation memory demonstrates that 10,000-year flood memories can survive in accurate oral form. The UB's plural-flood framework matches the evidence better than either "one global flood" (Genesis literalism) or "no historical flood" (full-skeptic) positions do.