He’d heard that some of these things were quite old, but this one seemed beyond ancient. Oh, around the edges it did have accretions of new tech such as weight benches and barbells. But the core of it was a pit of loose earth, protected from rains by a roof on stilts. For it had been the practice in these parts for thousands of years that wrestlers used the earth as Western wrestlers used foam mats and Japanese used tatamis. That didn’t work unless the ground was prepared just so. Over time it would get tamped down hard by the probing feet and the thudding bodies of the athletes. Then it had to be refreshed. This work was performed daily.