Rottweilers are one of the oldest dog breeds, known since Roman times. In the hundreds of years of this breed's existence, the Rottweilers have been able to adapt to every century's needs. From their original purpose as livestock herders, cart-pullers, and guard dogs to war dogs and companions, the Rottweiler is surely a very versatile breed. Interestingly, when working as herders, Rotties become quite affectionate toward their cattle as long as they do what's directed. According to the breed standards, their temperament is good-natured, placid, devoted, and obedient while also self-assured and fearless.