agora vs emporium

agora

noun
  • A marketplace, especially in Classical Greece. 

  • Since 1960, a monetary unit and coin of Israel, the 100th part of a shekel / sheqel. 

  • A place for gathering. 

emporium

noun
  • A city or region which is a major trading centre; also, a place within a city for commerce and trading; a marketplace. 

  • A business set up to enable foreign traders to engage in commerce in a country; a factory (now the more common term). 

  • A shop that offers a wide variety of goods for sale; a department store; (with a descriptive word) a shop specializing in particular goods. 

How often have the words agora and emporium occurred in a corpus of books? (source: Google Ngram Viewer )