'A king will die': 4,000-year-old lunar eclipse omen tablets finally deciphered
In case you were wondering how long these religions lasted...
Ancient Mesopotamian - 3,900 years
Hellenic (Greek) - 3,400 years*
Egyptian - 3,000 years
Asatru (Norse) - 2,000+ years (still worshiped)
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* We can’t know for sure the exact dates because they were worshiped before the advent of writing. If we consider when the first surviving temple to a Hellenic god was built it would be around 1,900 years, but we know the Greeks worshiped their deities much further than that, so the estimate of 3,400 is likely more accurate.
Also worth noting that there is a very very tiny minority of people who still worship the Hellenic gods; however, their numbers are small enough that the religion is generally considered effectively extinct (as far as I know; please correct me if I’m wrong!).