In dating systems, Paine dating system (BCM/ACM), aka "Paine Calendar", is a secular achristism alternative to the theistic “BC and AD system” (Exiguus, 525AD) (Ѻ), which explicitly labels “common era” years, or “vulgar era” (Kepler, 1615), as Years Before Christ Myth (BCM), instead of Before Christ (BC) or Before Common Era (BCE), and Years After Christ Myth (ACM) instead of Anno Domini (AD) or Common Era (CE).

Overview
The “Paine dating system” was invented in the mind of Thomas Paine who about eight years after the publication of his The Age of Reason (1794), one of the most-widely cited “atheist’s bible”, historically (Ѻ)(Ѻ), wherein he outlines some basics of the Christ myth, aka Christ myth theory, Christian mythology (or Christ fable), began to date his letters to people as follows:

“Paris, February 21st, 1802, since the fable of Christ”

— Thomas Paine (1802), “Letter to Elihu Palmer”, signature and dating method [1]

On 8 Nov 2018, Libb Thims began to employ the above defined Paine dating system notion to Hmolpedia articles, e.g. Johann Goethe (1749-1832 ACM) (0-82 AG), Empedocles (495-435 BCM) (2245-2185 BG), and Thomas Paine (1737-1809 ACM) (13 BG – 59 AG), along with the water-testing stage upgrade secular Goethean calendar (BG/AG) notation system, shown in addition. It is generally advisable to use both dating systems, when dating people; over time, the later, or something equivalent, will superseded the former.

Quotes
The following are related quotes:

“Written in the land of the living; on the right bank of the Adige, in Verona, in the year of that god whom you never knew the 1345th.”

— Petrarch (1345), signoff to a letter [2]

“Since, we are looking at the history of god from the Jewish and Muslim as well as the Christian perspective, the terms ‘BC’ and ‘AD’, which are conventionally used in the West, are not appropriate.”

— Karen Armstrong (1993), A History of God [3]

“The fact that we still categorized years in BC/AD dating system, indicates that we are still a backwards people.”

— Libb Thims (2018), mental note; arisen will editing the Murray 4000 page, 7:40PM CST Jan 15

References
1. (a) Haught, James A. (1996). 2000 Years of Disbelief: Famous People with the Courage to Doubt (pg. 88). Prometheus.
(b) Conway, Moncure D. (date). The Life of Thomas Paine (Ѻ). Publisher.
2. Hecht, Jennifer M. (2003). Doubt: A History: The Great Doubters and Their Legacy of Innovation from Socrates and Jesus to Thomas (Cicero letter, pg. 262; year of that god, pg. 269). HarperOne.
3. Thims, Libb. (2011). Purpose? (in a Godless universe). (94-pg manuscript) (unfinished); Online as 105-page unfinished manuscript (14 Apr 2013). IoHT publications.

External links
● Thomas Paine Day (aka Freethinkers Day) – PunchBowl.com.