Dialectics of Nature and the Historical Approach

I've been thinking a lot about feudal society, probably just because of House of the Dragon TV show. I don't know if that jogs any kind of potential jumping off point for this kind of historical historical materialism or dialectical historical materialism. But one thing I wanted to maybe broach as a possible jumping off point would be something like plate armor, for example, was not developed until cannons and guns sort of became a thing before that it wasn't even a thing. And may I share there's a part from dialectics of nature from police from the chapter, the part played by labor in the transition from ape to man. Okay, good. If you have this well read