Ever since the late 90s , there was a buzz circulated that also involved emails being sent out to random people . The dates that was given were , 9/11/01 & 5/19/13 ! http://www.4chan.org/ http://undergroundworldnews.com http://www.05-19-13.com/ http://knowyourmeme.com/memes/51913-expect-us http://www.advantagemexico.com/mexico_city/teotihuacan.html https://en.wikipedia.org/wiki/Pentecost