in 1937, and the first show was held at Geraldine Rockefeller Dodge's Giralda Farms in New Jersey. Following the Second World War, imports from the United Kingdom included Rozavel Uncle Sam, which dominated the show circuit for Corgis. In 1949, he became the first Pembroke winner of best-in-show at an open conformation show in the United States. By 1998, the Pembroke Welsh Corgi had become the 37th-most popular breed of dog in the US. A pair of Cardigan Welsh Corgis was imported to the US in 1931, but the first member of that breed to be registered with the AKC was Blodwen of Robinscroft in 1935. They have never had the draw in the US given to the Corgis of the Pembroke type. In 1997, some 752 Cardigan Welsh Corgis were registered with the AKC, compared to 8,281 of the Pembrokes. Modern breeds The two breeds of Welsh Corgis, the Cardigan and the Pembroke, are named for the county in Wales where they originated, respectively. The dogs share several similar traits, such as their coats, which are water-resistant and shed on average twice a year. The body of the Cardigan is slightly longer than that of the Pembroke; both breeds have short legs, placing their bodies close to the ground. They are not as square in outline as a typical Terrier, nor have an elongated body as great as that of a Dachshund. Only minor differences in the shape of the head are seen; both appear fox-like. The head of a Cardigan Welsh Corgi is typically larger than that of an equivalent Pembroke and has a larger nose. A few days following birth may be needed for the true color of a Corgi's coat to appear, and this is particularly evident in those with tricolor or black and tan markings. Corgis in the modern era often compete in dog agility trials, obedience, showmanship, flyball, tracking, and herding events. Herding instincts and trainability can be measured at noncompetitive herding tests. Cardigan and Pembroke Corgis exhibiting basic herding instincts can be trained to compete in herding trials – known colloquially as a "mad run". Welsh Corgis were once used to guard children. Cardigan Welsh Corgi The differences between the two breeds include bone structure, body length, and size. Cardigans are the larger of the two breeds, with large, rounded ears and a , fox-like, flowing tail set in line with the body.