> stirrups (using the weight of the horse with the rider) with spears Stirrups are not a European innovation but borrowed, probably from Asian invaders, and sp

> stirrups (using the weight of the horse with the rider) with spears Stirrups are not a European innovation but borrowed, probably from Asian invaders, and spread across Asia to Europe from China beginning in the late 6th century AD. China and Korea had stirrups for almost a millennia by then.