Birth Pangs, as Jesus said.
If Jesus was born on the Feast of Trumpets, as Revelation 12 suggests, then his conception was about 9 months before that. i.e. late December, or Hanukkah.
The average length of human pregnancy is ~266 days, almost 9 months or ~270 days.
So, if we work back from the Feast of Trumpets 2012, which is around 2012-09-17, we find some interesting patterns!
Remember we don't know the exact day or hour, so there is +/- a day or so with these dates.
~932 days before = 2010-02-27 = Concepcion, Chile earthquake. 932 days = 666 + 266
~911 days before = 2010-03-21 = Iceland Volcano Erupts
~888 days before = 2010-04-13 = Major Quake in China, Iceland Volcano ash stops potential airborne attack on Israel?
~880 days before = 2010-04-20 = Deep Water Horizon oil rig spill (Falls into ocean on 4/21 = 911 days after Comet Holmes exploded.)
~777 days before = 2010-08-03 = First major Earth-directed Sun coronal mass ejection
~555 days before = 2011-03-11 = Fukushima quake
~532 days before = 2011-04-04 = (266 x 2) = EQ 6.7 Indonesia, 5.4 Nepal, US Tornados, UN Plane Crash, http://en.wikipedia.org/wiki/April_2011
~333 days before = 2011-10-20 = Ghaddafi killed, Shalit released 2 days earlier
~270 days before = 2011-12-22 = 9 months before, pregnancy, Hannukah See previous post for details on this important time frame.
http://www.fivedoves.com/letters/dec2011/abe1212.htm (correction Jupiter should be Saturn.)
~266 days before = 2011-12-26 = ? 266 is avg length of human pregnancy
These date patterns highlight the importance of the Feast of Trumpets 2012/5773 and this Hanukkah 2011. It's not a very solid pattern, as there have been many disasters over the past few years. For example, II have not yet figured out the Christchurch earthquakes, which are 744 and 573 days before.
However, if the pattern holds, we should see VERY notable events around 2011-12-21 and 2011-12-26. These events, like the Concepcion quake, should have birth related memes.