Once other animals such as cattle, sheep and goats became domesticated, man became aware of the dogs herding ability. Tactics used by hunting wolves, witnessed by humans, such as driving and separating one animal from the flock, were further exploited and bred into these dogs. As in other dogs, the animals possessing the best inherent herding abilities were further developed to assist human shepherds in their daily duties.
As you know, German Shepherds fall into the Herding Category of dog breeds- the breed was derived in the late 1800