848K views · 8.1K reactions | Sparta remained conservative and adhered to traditional beliefs, resisting the philosophical changes spreading in Greece. Their strict social system and warrior culture became rigid, causing suspicion and hostility towards new ideas. | Odyssey - Ancient History | Facebook

Flush toilets date back to 1596 when John Harington designed a flushing closet for Queen Elizabeth I. However, his design used a straight pipe that allowed sewer gases to enter the room, making it unhealthy. It never caught on, leaving indoor sanitation unsolved for nearly 200 years. In 1775, Scottish watchmaker Alexander Cumming patented a design with an S-shaped bend in the pipe. The resulting S-trap held water that blocked sewer gases, marking a major advance in hygiene. His basic design rema