[[history]] # Technology <iframe width="100%" height="350" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen src="https://en.wikipedia.org/wiki/Proto-Indo-European-society#Technology"></iframe> [wiki](https://en.wikipedia.org/wiki/Proto-Indo-European-society#Technology) [[buck-20.21-arms-weapons]]