From primitive open defecation in the Stone Age to AI-powered smart toilets of the future — this is the complete evolution of toilets from 100,000 BC to 2100 AD. In this visual data comparison, we travel through history to see how human sanitation transformed over thousands of years — from basic pits, clay-lined latrines, and Roman public baths, to space toilets, zero-water designs, and even AI health-diagnosing toilets of the 21st century and beyond. Watch till the end to discover mind-blowing future innovations, including interplanetary toilets for Mars bases and nano-cleaning self-maintenance systems. Music: When The Smoke Clears - Evening Telecast