She was given as a dowry
There was one mirror;
The mirror property had:
It speaks skillfully.
A. S. Pushkin.
The Tale of the Dead Princess and the Seven Bogatyrs (1833).
People do not want to accept the fact that there were civilizations here with quite advanced technologies before them. Most admit the idea that they were, but the fact that a lot of them remained, almost no one considers.
At one forum, respected by me, a topic was somehow raised, the meaning of which was that they tried to discuss the issue of storing information. In the sense that it (information) is stored for a long time and does not deteriorate. After all, the paper smolders, it takes a long time to sharpen stone pages with a chisel, and too much labor is required for that. Electronic media, the same will sooner or later turn into dust.
Promotional video:
But since we have heard about other developed civilizations, then why no one admits the idea that at that time they successfully solved this issue. And that it is enough to just want to look for these solutions. Look for those flash drives and disks that are scattered in abundance here and there. Try to read them already.
Look at the same bronze Chinese mirrors. And there is a great variety of this "vinyl". And the matter did not go further than letting in bunnies.
Larisa Mosunova