Found via
ladyelleth.
A short article about the discovery of the remains of a female Austrian metal worker... from 4000 years ago.
Of course, that sort of knowledge is even harder to come by. For all the gender bias in written records, at least there's written records...
(My cynical inner conspiracy theorist can't help but ask, of course, why of all the bones (and look at the pic, there are quite a lot of them), the pelvic ones would be missing... someone disappearing evidence, mayhaps?)
More details in German
here.
So much, at any rate, for "natural" division of labour, etc. :D