# history of perpetual motion machines

> dates at least back to the Middle Ages

**Wikidata**: [Q16252268](https://www.wikidata.org/wiki/Q16252268)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/History_of_perpetual_motion_machines)  
**Source**: https://4ort.xyz/entity/history-of-perpetual-motion-machines