>Yes, it is surprising how much history there are and so little usable
>*data* (I would really like to have a database where I could ask
>questions like "list all military conflicts between democratic
>nations" or "plot a histogram of the lifespans of all
>civilizations").
Vast amounts of sorted data are available (for a price) from the Foundation
for the Study of Cycles at
http://wanda.pond.com/~cycles/
...or so their site informs us.
Damien Broderick