As we've discussed in previous STBYM episodes about zombies, the notion of shambling undead hoards strikes a real chord with our modern world. They're an endless checklist. They're a fantasy in which indiscriminate violence solves all our problems.
So zombiemania is largely a 20th century invention, but its cultural roots creep back through the ages -- all the way to our earliest recorded myth cycles. Shamble down 4,000 years of human history and you'll find a gloriously creepy mention of zombies in ancient Mesopotamia.
This was the age of Gilgamesh. The celestial Queen Ishtar ruled over the heavens and the Earth while her sister Ereshkigal ruled over the dead in the underworld. Humans of course lived in the space between, telling tales of heroic descents to a world beneath our own -- the sort of stuff we've continued to tell ever since.
In one tale, according to Alice K. Turner, Ershkigal even threatens to flood the earth with the dead "so that they might devour the living" if she doesn't get what she wants. I've also seen accounts that attribute the threat to Ishtar, as discussed in this blog post from Professor Jim Getz.
Why would the celestial Ishtar command undead legions rather than the queen of the underworld? Here's what Getz has to say:
Either way, we have a truly hoary threat of undead madness, 2,000 years before Jesus stepped forth from the grave.