Leicester Longwool sheep are pivotal in the history of standardised sheep breeds. The breed was imported into the United States in 1990, and it was never imagined as more than a minor sideline to the array of breeds in the United States. Eighteen sheep were originally imported from Tasmania, with further contributions via semen from 12 rams in Australia, New Zealand, and the United Kingdom. In subsequent years the population of this breed in those source countries has plummeted, leaving the United States with the largest national flock (800). The decline in numbers worldwide have made the genetic management of the North American population increasingly important. The wool is sought by handcrafters and brings a premium price. Attention to maintaining the breed with its original fleece characteristics is an important priority, especially given the breed's role in the development of multiple longwool breeds. One divergence of the American flock from the other countries is the registration of coloured animals, and these make up 6% of the current flock.
