Final answer:
The diffusion of stirrups exemplifies cultural diffusion through the Eurasian Steppe, connecting Chinese innovations with Central Asia and Europe, enhancing mounted warfare and showcasing the nomadic tribes' openness to new technologies.
Step-by-step explanation:
The spread of stirrups from the Chinese to Central Asians and eventually to Europeans is an exemplary case of cultural diffusion, a process wherein a cultural item, be it a concept, a technological innovation, or a philosophical idea, is spread from one region to another, often transforming societies and warfare practices. The Eurasian Steppe served as a bridge that facilitated this exchange, with nomadic tribes such as the Xiongnu and Mongols playing pivotal roles in the dissemination of military technologies like stirrups, which allowed for greater mounted warfare efficiency. Not only were these societies adept horsemen due to their nomadic lifestyles, which emphasized skills like archery and horseback riding from a very young age, but they also proved to be open to adopting and assimilating technologies from neighboring civilizations, which in turn enhanced their military prowess.