While "Chola" is the most well-known historical name, it's important to note that:
* "Chola" refers to a dynasty, not the whole land. Tamil Nadu has been ruled by various dynasties throughout history, including Cheras, Pandyas, and Pallavas.
* "Tamil Nadu" wasn't a single unified region for much of its history. These dynasties often ruled over smaller kingdoms, and the current state was formed through the unification of various regions in 1956.
So, while "Chola Nadu" is a prominent historical name, it doesn't encompass the entire history and geographical area of modern Tamil Nadu.