whereas vs whereupon

whereas

conj
  • In contrast; whilst on the contrary; although. 

  • It being the fact that; inasmuch as. (Often used to begin recitals; sometimes emboldened or emphasized as a signifier.) 

noun
  • A clause, as in legal documents, stating whereas. 

whereupon

conj
  • After which, in consequence. 

  • Upon which. 

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