In Elizabeth Barber's Women's Work: the First 20,000 Years (1994) there's a passage where, on the basis of reconstructed PIE roots, she posits what we're fairly

In Elizabeth Barber's Women's Work: the First 20,000 Years (1994) there's a passage where, on the basis of reconstructed PIE roots, she posits what we're fairly sure the proto-indo europeans were getting up to in the evenings around their campfires, and many of the activities are very familiar indeed. (literally so: some of the reconstructed verbs being activities which may lead to family formation)