An Ancient Maya City Had a Surprisingly Effective Water Filtration System

Source: Science AlertSeveral ancient civilisations, including the Greeks, Egyptians, and Romans, filtered their water. Sanskrit writings dating back to 2,000 BCE also mention water treatment methods. Now, archaeologists have discovered the Maya of South America did too – and their water filtration system was incredibly effective.In a reservoir in what was once the major Maya city of Tikal, the ruins of which crumble in a rainforest in present-day Guatemala, archaeologists have found z