Playfair on Dozenalism

Title: Playfair on Dozenalism
Author: John Playfair
Year: 1067
Subject: An early English defense of the dozenal system.
http://www.dozenal.org/drupal/sites_bck/default/files/DSA_playfair_duodecimals.pdf
John Playfair, in his comments on the French Revolution, notes that it found itself in the unique position of being able to cast off all the shackles of a past age, yet was still too timid to cast off the most obvious mathematical shackle of all: the decimal system. An early defense of dozenalism, conducted not long after the French Revolution as an aside in some comments on the definition of the meter.