Labrador Violet...

I recently bought this plant and it has the tiniest purple flowers. Ok, I love miniatures what can I say!! All I knew that it was a perennial (which I'd rather spend money on than annuals) and I loved the purple flowers. Today I decided to take a look at the name of the plant after taking a picture of it.....Labrador Violet. I'm curious to know how it got it's name!