I want to know the answer to the following question:
What prompts darkness over the land in old literary works?
All the background I'm provided with is that "This image of darkness over the land would have been understood by ancient readers, a typical element in the description of the death of kings and other major figures by writers such as Philo, Dio Cassius, Virgil, Plutarch and Josephus.". Is that enough to answer the question?