It's always fascinating watching people looking for "proof" that this or that event in the Bible really happened -- the Noachian flood is always the biggie.
Do other religions to that, too? I just don't know enough about other religions, except maybe the Greeks, and they did seem to be always looking for "proof" that their myths (e.g., Atlantis) really happened.
Looking for physical causes of events described in the Bible beats the ass of rejection in toto.