I'm writing a paper about the lives of aristocratic women during the Heian period in Japan and I'm wondering about how to capitalize certain nouns in this sentence:
"In Heian japan, there were many famous books published but the most famous and well known of those books is, Tale of Genji, by Murasaki Shikibu."
When I say "Heian japan" I am refering to the time which what I am saying is occuring. Since I make Heian Japan a single noun phrase would only the first word of the noun phrase be capitalized, or should both?