contemporaneity vs ubiquity

contemporaneity

noun
  • The state or characteristic of being contemporaneous. 

ubiquity

noun
  • The state or quality of being, or appearing to be, everywhere at once; actual or perceived omnipresence. 

  • Anything that is ubiquitous within a specified area. 

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