These were found in a thin layer “of mixed soil, clay, gravels, and small charcoal fragments, laid directly upon bedrock where builders planned to erect stone walls,” the researchers explained.

Archaeologists have unearthed a lost city in Peru that thrived 3,500 years ago, likely as a potential contemporary of early human societies such as the ancient Egyptian and Sumerian civilisations ...

Archaeologists have unearthed a lost city in Peru that thrived 3,500 years ago, likely as a potential contemporary of early human societies such as the ancient Egyptian and Sumerian civilisations ...

Archaeologists have unearthed a lost city in Peru that thrived 3,500 years ago, likely as a potential contemporary of early human societies such as the ancient Egyptian and Sumerian civilisations of ...