Age of Enlightenment Louis XV until the French Revolution. If taken back to the mid-17th century, the Enlightenment would trace its origins to Descartes' "Discourse on the Method", published in 1637. In France, many cited the publication of Isaac Newton's "Principia Mathematica" in 1687. It is argued by several historians and philosophers that the beginning of the Enlightenment is when Descartes shifted the epistemological basis from external authority to internal certainty by his "cogito ergo sum" published in 1637. As to its end, most scholars use the last years of the century, often choosing the French Revolution of 1789 or the beginning of
Ergo Proxy to steal the spotlight from Vincent. This gave them the opportunity to split the narrative between the two characters instead of having a single protagonist lead the story. In Japan, "Ergo Proxy" aired on pay-TV satellite broadcasting network WOWOW from 25 February 2006, concluding on August 12, 2006. "Ergo Proxy" was then released by Geneon Entertainment onto nine DVD volumes from May 25, 2006 to January 25, 2007. The series was licensed by Geneon Entertainment USA for Region 1 release, which began on November 21, 2006 and spanned six volumes. The English dub of "Ergo Proxy" premiered on Fuse TV