Which playwright authored Romulus and Clastidium?

The playwright who authored "Romulus and Clastidium" is indeed Naevius. He was an early Roman playwright known for his contributions to the development of Roman comedy and drama. Naevius is often recognized for blending Greek theatrical traditions with Roman themes and characters, making his work significant in the context of Roman literature.

"Romulus and Clastidium" is one of his notable works, which reflects themes of national identity and military valor, particularly centered around the Roman heroism associated with the founding of Rome. The historical events depicted in Naevius's plays often incorporated mythological elements, contributing to the understanding of Roman culture during his time.

Other playwrights listed, such as Plautus and Terence, are also important figures in Roman theatre but are known for different works. Plautus focused on comedic plays that were more structured and often featured elaborate plots, while Terence was known for his more sophisticated style and moral themes. Ennius, another essential figure, is renowned for his epic poetry rather than his contributions to dramatic works. Thus, Naevius stands out as the correct author of "Romulus and Clastidium," highlighting his role in the early stages of Roman dramatic literature.