An Occurrence at Owl Creek Bridge is not an example of historical fiction.
Ramayana is a Sanskrit epic, which was attributed to a poet named Valkimi, a legendary Hindu wise-man, and It was probably written around 500 BC. The name Ramayana translates as “the Rama’s journey”. The epic tells the story of a prince called Rama, whose wife, Sita, was abducted by e demon named Ravana. Ramayana is not a mere story, It holds teachings from the ancient Hindu wise-men, presented through allegories that combined philosophical and devotional knowledge. Based on this, it is possible to state that the frequent references to Hindu gods in the verses of the Ramayana serve the purpose of demonstrating the righteous path to its readers, according to the Hindu cultural and religious tradition.
U never gave the options but proper noun is something specific like a car would be a common noun but a BMW would be a proper noun.