How did ancient civilizations deal with sewage?

Indus Valley Civilization – Built advanced drainage systems and public baths in cities like Mohenjo-Daro. – 

Ancient Egypt – Used clay pipes and basins to carry waste away from homes. – 

Ancient Rome – Developed complex sewage systems like the Cloaca Maxima to drain waste into the Tiber River. – 

Ancient Greece – Cities like Athens had latrines connected to rudimentary drainage channels. – 

Minoan Civilization (Crete) – Palaces like Knossos had flushable toilets and underground sewers. – 

Ancient China – Used pit latrines and underground tunnels to dispose of waste. – 

Mesopotamia – Built clay pipe networks to channel waste away from homes and temples. – 

Mayan Civilization – Created drainage systems and used cenotes (natural sinkholes) for water and waste. – 

Medieval Europe – Waste was often dumped into rivers, leading to sanitation problems. – 

Persian Empire – Constructed qanats, underground channels, to manage water and reduce waste buildup.