Assyrian clay tablet from 2800 BC predicts end of world

As far back as 2800 BC it appears the end of the world was coming. According to Isaac Asimov’s Book of Facts (1979), an Assyrian clay tablet dating to approximately 2800 BC was unearthed bearing the words “Our earth is degenerate in these latter days. There are signs that the world is speedily coming to an end. Bribery and corruption are common.” This is one of the earliest examples of the perception of moral decay in society being interpreted as a sign of the imminent end.
So, Dec 21 2012 is not the first “end of the world” scare. You can see 200 recorded end of world prophecies in the first chapter of 12.21.2012 Planet X Codex.