To become Dalmatian, first you must become a level 2 druid. Then, using your newfound Wild Shape ability, take the form of a dog.

No, that's the dog FROM Dalmatia, they really like to make things confusing. To become Dalmatia we need to give away all our land to vassals, give 2 dev to our Dalmatian provinces, and remove 1 dev from venezia.