What is the flat coated retriever breed history?

According to AKC.org, here's the history...

The Flat-Coat’s ancestry includes the "Retriever Proper," a cross-breed emerging from the Large Newfoundland, setter, sheepdog, and spaniel-like water dogs.

These retrievers were invaluable to fishermen and often traded between Britain and North America, where they became known as generic "Labrador" dogs.

Eventually, a breed known as the Wavy-Coated (subsequently Flat-Coated) Retriever appeared and became distinct to these "Labrador" dogs.

Although his tail never stops wagging, the Flat-Coated Retriever is suited for hard work. Originally bred to flush and retrieve both upland game and waterfowl, he transfers his determination, desire and verve on the hunting field to everyday life, enthusiastically participating in family activities and in the show, obedience and agility rings.

Slightly racier and more moderate in bone than other retriever breeds, the Flat-Coat has a solid black or liver-colored coat that protects him from the elements and lies straight and flat.