Spaniel-type dogs have been known for at least 500 years, although the first studbooks for the English Cocker Spaniel breed were registered much later in 1874. Bred to be a gun dog, the Cocker Spaniel soon gained popularity outside hunting for its intelligence, kindness, and athleticism. Also, Spaniels seem to be always wagging their tails out of happiness, thus earning them the nickname 'merry cocker.' Cocker Spaniels get along well with people, kids, and other pets but need a soft hand and loads of praise when trained. While they are excellent working dogs, the 'house'-bred Cockers also make for incredibly great family pets.