Quote Originally Posted by bckrazy
*They descend from the same breed (which is said to be a very old breed), but were seperated into 2 different breeds about 70 years ago.
I've heard different things about this, many sources say that they were actually different breeds until about they gained popularity in the UK and the US, and were interbred. Eventually, when a breed standard was set up they were recognized as different breeds, but I've also heard that they are descended from spitz types dogs brought from the Vikings. They are related to the Vallhund.

Erica did a good job summarizing- I guess I'd just add that Cardis are a little more laid back and Pems tend to be more hyper.

Also, both breeds will nip at kids if they aren't properly trained, but I think Cardis are more known for that. When Marta was a puppy she will grab onto our feet- ouch! Of course she doesn't now, but she does have a strong herding instinct- she herds the other dogs, so does Vallis.

They are both great breeds, very very smart and really a ton of fun. You just have to be a bit careful about dominance, though- if corgis don't find the head of the household they will gladly fulfill the role.