Wolf hunting is the practice of hunting wolves. Wolves are mainly hunted for sport, for their skins, to protect livestock and, in some rare cases, to protect humans. Wolves have been actively hunted since 8,000 to 10,000 years ago, when they first began to pose a threat to livestock of Neolithic human communities. Historically, the hunting of wolves was a huge capital- and manpower-intensive operation. The threat wolves posed to both livestock and people was considered significant enough to warrant the conscription of whole villages under threat of punishment, despite the disruption of economic activities and reduced taxes. The hunting of gray wolves, while originally actively endorsed in many countries, has become a controversial issue across the globe. Most people see it as cruel, unnecessary and based on misconceptions, while proponents argue that it is vital for the conservation of game herds and as pest control. In the sixth century BC, the first wolf bounty was reportedly opened when Solon of Athens offered five silver drachmas to any hunter for killing any male wolf, and one for every female. In Ancient Rome, the treatment given to wolves differed from the treatment meted out to other large predators. The Romans generally seem to have refrained from intentionally harming wolves. For instance, they were not hunted for pleasure (but only in order to protect herds that were out at pasture), and not displayed in the venationes, either. The special status of the wolf was not based on national ideology, but rather was connected to the religious importance of the wolf to the Romans. In England of 950, King Athelstan imposed an annual tribute of 300 wolf skins on Welsh king Hywel Dda, an imposition which was maintained until the Norman conquest of England. At the time, several criminals, rather than being put to death, would be ordered to provide a certain number of wolf tongues annually. The Norman kings (reigning from 1066 to 1154) employed servants as wolf hunters and many held lands granted on condition they fulfilled this duty.