happening vs modern

happening

adj
  • Trendy, up-to-the-minute. 

  • Busy, lively; vibrant, dynamic; fashionable. 

noun
  • Something that happens. 

  • A spontaneous or improvised event, especially one that involves audience participation. 

modern

adj
  • Pertaining to a current or recent time and style; not ancient. 

  • Pertaining to the modern period (c.1800 to contemporary times), particularly in academic historiography. 

noun
  • Someone who lives in modern times. 

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