Пандора
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Fomenko is 100% right. Unfortunately, nowadays history is being written (and most importantly, published!!!) by anyone who feels like it and believes they are opening everyone's eyes. It's better not to even analyze their "works," otherwise... it will definitely end badly. You won't find any references to sources or even the slightest hint of understanding history in general. For such "authors," history is something like a fantasy world.
I won't argue about the matriarchy, as I don't have the opportunity to delve into it in detail right now. But I still think it existed somewhere in the archaic period. However, it was underdeveloped, and that's why it was replaced by a more "productive" patriarchy.
P.S. AlexeyPank, how was your exam session? Did it end?