The greatest invention of mankind is, of course, writing. About the life of some pharaohs, thanks to papyruses and records on the walls of temples, we sometimes know the smallest details. And about the formidable army that took place in the middle of the II millennium BC all of Russia from right to left - almost nothing. Not a single letter has survived, only burial grounds along the banks of great rivers, filled with weapon of extraordinary beauty. Watch the video to the end to learn more about these burial grounds and other recent archaeological finds.