Pen vs Prohibition

Pen

name

  • The 68th sura (chapter) of the Qur'an. 

  • A diminutive of the female given name Penelope 

Prohibition

name

  • The 66th sura (chapter) of the Qur'an. 

  • Any of several periods during which the manufacture, transportation, import, export, and sale of alcoholic beverages were restricted or illegal. 

  • The period from 17 January 1920 through 5 December 1933 in the United States, between the effective dates of the Eighteenth and Twenty-First Amendments to the United States Constitution. 

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