just read something about economic history/history of capitalism:
it is the nature of capitalism to widen the gap between rich and poor.
the claim of this author (and many more) was that periodically there are incidents to correct this imbalance. they either happen when the part of the society that has nothing does not accept the distribution of wealth anymore or by an economic crisis. the essay mentioned a lot of examples. i can only remember a few like the big crisis in 1929 or certain currency reforms.
it also said that mechanisms like a social system can slow the development down. the more wealth is redistributed the slower the gap widens and the less often there are crisis.
the key point was that by looking at how wide the gap between the rich and the poor is you can predict how close a society is to the next "correction"
sadly i dont have a link for that as i read it in the library at unversity.
2nd:
an aticle about a study which claims that attacks of terrorists/resistance fighters follow a mathematic pattern and can therefore be predicted.
problem here: if ur german sucks you will have to use google translate
http://www.spiegel.de/wissenschaft/m...771641,00.html
not sure if that was what you were looking for. when it comes to more general history (next WW etc) i dont know anything about predictions ( except for nostradamus
)