Nostradamus predicted it:
In the City of God there will be a great thunder,
Two brothers torn apart by Chaos, while the fortress endures, the great leader will succumb'
'The third big war will begin when the big city is burning'
...on the 11 day of the 9 month that...two metal birds would crash into two tall statues...in the new city..and the world will end soon after"
"From the book of Nostradamus"
Assuming "the City of God" is New York City, then the "two brothers torn apart by Chaos" must be the fallen towers of the Word Trade Center. The "fortress" is obviously the Pentagon, the "great leader" succumbing is the United States of America and "the third big war" can only mean World War III.
But still all of that could be a hoax.