the Rostov slab

At www.livescience.com/48298-bronze-age-sundial-moondial-discovered.html … a slab of rock discovered 20 years ago and having spent that time in the back of a museum in Russia has proved to have had an astronomical function. An archaeo-astronomer said somewhat unconvincingly, that it was perhaps evidence of people trying to understand patterns of the motion of luminaries and the nature of time. The slab of rock had been used to cover a grave dating back to the 12th century BC. It goes back to the Srubna Culture people who lived on the steppe between the Urals and the Dneiper.