Treatise on Ammunition, from 1926 retitled Text Book of Ammunition, is a series of manuals detailing all British Empire military and naval service ammunition and associated equipment in use at the date of publication.
 It was published by the War Office at approximate 5 year intervals.
 As the guns are listed for which the ammunition can be used, the Treatise also constitutes a list of guns in service at the publication date.
The Register of the Victoria Cross is a reference work that provides brief information on every Victoria Cross awarded until the publication date.
 Each entry provides a summary of the deed, along with a photograph of the recipient and the following details where applicable or available - rank, unit, other decorations, date of gazette, place/date of birth, place/date of death, memorials, town/county connections, and any remarks.
 The book was first published by the quarterly magazine, "This England" in 1981, a revised and enlarged edition in 1988 and a third edition in 1997.
 There is no editor noted on the cover page or the title page but Nora Buzzell is acknowledged in all three edition specially in the 1988 and 1997 editions as "compiled and researched for This England by Nora Buzzell".
A Conference about the Next Succession was a pseudonymous book published by "Doleman" (N. Doleman or R. Doleman), and dealing with the succession to Elizabeth I of England.
 The cover date is 1594, but the real publication date is taken to be around September 1595, in Amsterdam.
 The author has traditionally been identified with Robert Persons, an English Jesuit exile.
 It has also been suggested that Doleman is a collective pseudonym.
Hunminjeongeum (lit.
 "The Correct/Proper Sounds for the Instruction of the People") is a document describing an entirely new and native script for the Korean language.
 The script was initially named after the publication, but later came to be known as hangul.
 It was created so that the common people illiterate in hanja could accurately and easily read and write the Korean language.
 It was announced in Volume 102 of the "Annals of King Sejong", and its formal supposed publication date, October 9, 1446, is now Hangul Day in South Korea.
 The Annals place its invention to the 25th year of Sejong's reign, corresponding to 1443–1444.
Masterpiece is a board game by Parker Brothers, now a brand of Hasbro.
 Players participate in auctions for famous works of art.
 It was invented by Joseph M. Burck of Marvin Glass and Associates and originally published in 1970 by Parker Brothers, and then published again in 1976 and 1996.
 The game is now out-of-print.
 In this game, players compete with other players to bid on potentially valuable paintings, and negotiate with other players to trade these works of art, build a portfolio, amass money, and win the game.
 The top value of a painting in the 1970 edition is $1 million, and $10 million in the 1996 edition; however, getting the full value for the painting requires some luck in landing on the right square on the board to sell a painting to the bank.
Mutant Meeples is a 2012 board game designed by Ted Alspach and published by Beziér Games and Pegasus Spiele.
 The game has been inspired by "Ricochet Robots" by Alex Randolph.
The $30,000 Bequest and Other Stories (1906) is a collection of thirty comic short stories by the iconic American humorist and writer Mark Twain.
 The stories contained span the course of his career, from "Advice to Young Girls" in 1865 to the titular tale in 1904.
 Although Twain had ample time to refine his short stories between their original publication date and this collection, there is little evidence to suggest he took an active interest in doing so.
 "A Burlesque Biography" contains only a few minor technical revisions which make it different from the 1871 version found in Mark Twain's "(Burlesque) Autobiography and First Romance".
 "Advice to Little Girls" shows slight revision from its earlier publication in "The Celebrated Jumping Frog of Calaveras County".
This is a complete list of works by H. P. Lovecraft.
 Dates for the fiction, collaborations and juvenilia are in the format: composition date / first publication date, taken from "An H. P. Lovecraft Encyclopedia" by S. T. Joshi and D. E. Schultz, Hippocampus Press, New York, 2001.
 For other sections, dates are the time of composition, not publication.
 Many of these works can be .
John Henley Heathcote-Williams (15 November 1941 – 1 July 2017), known as Heathcote Williams, was an English poet, actor, political activist and dramatist.
 He wrote a number of book-length polemical poems including "Autogeddon", "Falling for a Dolphin" and "Whale Nation", which in 1988 became, according to Philip Hoare, "the most powerful argument for the newly instigated worldwide ban on whaling."
 Williams invented his idiosyncratic "documentary/investigative poetry" style which he put to good purpose bringing a diverse range of environmental and political matters to public attention.
 His last published work, "American Porn" was a critique of the American political establishment and the election of President Donald Trump: Publication date was the date of Trump's inauguration (20 January 2017).
 In June 2015, he published a book-length investigative poem about the "Muslim Gandhi", Khan Abdul Ghaffar Khan, "Badshah Khan".
Giovanni Hoffmann (born ca. 1770, date of death unknown) was an Austrian (?)
 composer and mandolinist.
 Almost nothing is known of him save that several compositions for mandolin in the archives of the Gesellschaft der Musikfreunde in Vienna bear his name.
 Some bear a publication date of 1799.
 It is presumed that "Giovanni" is an Italianization of the name "Johann", but this cannot be proven.
 A concerto for mandolin and a quartet, the latter in an arrangement, have been recorded.

Question: What was the most recent publication date for the games Masterpiece and Mutant Meeples?
Answer: 2012