I want to know the answer to the following question:
Which language groups lived in Dalmation city-states prior to the 19th century?
All the background I'm provided with is that "The topic of language for writers from Dalmatia and Dubrovnik prior to the 19th century made a distinction only between speakers of Italian or Slavic, since those were the two main groups that inhabited Dalmatian city-states at that time.". Is that enough to answer the question?
Answer: yes