Learn about the fascinating history of geometry, from its first known application in ancient civilizations to its relevance in current science and technology. Ancient civilizations in places like the ...

A wheeled bull figurine from 3950–3650 BC was discovered in Europe, and it is the oldest identified object that has a wheel. The origin and invention of the wheel can be traced back to our natural ...

In the Middle Ages, the imaginary is an integral part of reality. The world of that time cannot be conceived otherwise. Within this panorama, both real and wonderful, plants play a major role in ...

Learn about the invention and history of gears from ancient times to the present and how gears have developed through time. Gears are mechanical devices made up of disks with teeth (“cogwheels”) that ...

Since a rohatyn was meant to cause a broad and deep wound, it was only used on big and potentially dangerous animals such as bears, aurochs, and wild boars. Since a rohatyn was meant to cause a broad ...

Although "oni" is frequently synonymous with "malevolent" or "frightening," instances arise where oni are venerated as guardians or divine beings. The conventional perception of oni often depicts them ...

Manufacturing chain mail or plate armor required high-intensity work methods and permanent buildings that were not feasible for the lifestyle of the Mongols. The Mongol archer in Mongolian light armor ...