Archaeologists have been using bones to identify the biological sex of skeletons for the past century, but when burials were found which didn't fit their notions of 'normal,' they tended to assume that the bone analysts had made a mistake. This is not entirely unreasonable, because bones are often so badly decomposed that it is impossible to tell the sex of the person. But I can point to cases where the bones clearly belong to a woman, and the archaeologists insisted that it had to be a man because only men were warriors. That's modern sexism plain and simple, and bad archaeology. But thankfully, archaeologists in recent decades have become aware of this problem, and as a result, more and more women are showing up with weapons!
