Question: Leonard Norman Wein, was an American comic book writer and editor best known for co-creating DC Comics' Swamp Thing and Marvel Comics' Wolverine, and was the editor for writer Alan Moore and illustrator Dave Gibbons' influential DC miniseries "Watchmen", Watchmen is an American comic-book limited series published by DC Comics, in which years?
Context: The Un-Men are a group of fictional characters in the DC/Vertigo Comics universe.  Created by the writer/artist team of Len Wein and Berni Wrightson, the Un-Men made their first appearance in 1972, in the first and second issues of the original" Swamp Thing" comic book series.  The characters made subsequent appearances in later issues of "Swamp Thing" and its successor series, "Saga of the Swamp Thing," and in the 1994 five-issue Vertigo miniseries, "American Freak: A Tale of the Un-Men."  In August 2007, Vertigo (DC's "mature readers line") launched "The Un-Men," a monthly comic book series chronicling the further exploits of these characters.  Thirteen issues of that title were published. Ozymandias ( ; real name Adrian Alexander Veidt) is a fictional character in the acclaimed graphic novel miniseries "Watchmen" by Alan Moore and Dave Gibbons, published by DC Comics.  Named Ozymandias in the manner of Ramesses II, he is a modified version of the comic book character Peter Cannon, Thunderbolt from Charlton Comics.  His name recalls the famous poem by Percy Bysshe Shelley, which takes as its theme the fleeting nature of empire and is excerpted as the epigraph of one of the chapters of "Watchmen".  Ozymandias is ranked number 25 on "Wizard's" Top 200 Comic Book Characters list and number 21 on IGN's Top 100 Villains list. "Watchmen" is a twelve-issue comic book limited series created by Alan Moore, Dave Gibbons, and John Higgins, published by DC Comics in 1986 and 1987. " Watchmen" focuses on six main characters: the Comedian, Doctor Manhattan, the Nite Owl, Ozymandias, Rorschach, and the Silk Spectre.  These characters were originally based on the Mighty Crusaders and then reworked in an unsolicited proposal to fit superhero properties DC had acquired from Charlton Comics in the early 1980s.  Series writer Alan Moore created the main characters to present six "radically opposing ways" to perceive the world, and to give readers of the story the privilege of determining which one was most morally comprehensible. Leonard Norman Wein ( ; June 12, 1948 – September 10, 2017) was an American comic book writer and editor best known for co-creating DC Comics' Swamp Thing and Marvel Comics' Wolverine, and for helping revive the Marvel superhero team the X-Men (including the co-creation of Nightcrawler, Storm, and Colossus).  Additionally, he was the editor for writer Alan Moore and illustrator Dave Gibbons' influential DC miniseries "Watchmen". Watchmen is a 2009 film based on the twelve-issue graphic novel series of the same name created by writer Alan Moore, artist Dave Gibbons, and colorist John Higgins, published by DC Comics between 1986 and 1987.  The graphic novel's film rights were acquired by producer Lawrence Gordon in 1986.  Many problems halted the adaptation's development, with four different studios and various directors and screenwriters being attached to the project through twenty years.  In 2006, Zack Snyder, who at the time was filming 'another comic book adaptation', was hired by Warner Bros. to helm "Watchmen".  Filming started in 2007, and following deals with two of the previous companies involved in the development—Paramount Pictures was responsible for international distribution rights after budgetary issues in 2004, resulting in a lawsuit by 20th Century Fox.  Fox, which was already contacted by Gordon in 1987, received $1 million of the gross—the "Watchmen" adaptation was finally released in March 2009. Hell (a.k.a. Gehenna, Hades, Hel, Jahannam, Sheol and Tartarus) is a fictional location, an infernal Underworld utilized in titles published by DC Comics.  It is the locational antithesis of the Silver City.  The DC Comics location known as Hell is based heavily on its depiction in Abrahamic mythology.  Aside from a brief appearance in "DC Special Series" #8 (1978) that was never referred to or even mentioned again, the DC Comics concept of Hell was first mentioned in "The Saga of the Swamp Thing" (vol.  2) #25-27 (June-August 1984), described by Alan Moore and was first seen in "Swamp Thing Annual" #2 (1985), both of which were written by Moore and depicted by Stephen Bissette and John Totleben. Albion is a six-issue comic book limited series plotted by Alan Moore, written by his daughter Leah Moore and her husband John Reppion, with covers by Dave Gibbons and art by Shane Oakley and George Freeman.  As a result of a deal forged by Vice-President Bob Wayne of DC Comics and Publishing Director Andrew Sumner of IPC Media, it was published through DC Comics' WildStorm imprint.  The series aimed to revive classic IPC-owned British comics characters such as Captain Hurricane, Robot Archie, The Steel Claw and The Spider (as well as minor characters like Fishboy and Faceache), all of whom appeared in comics published by Odhams Press and later IPC Media during the 1960s and early 1970s, such as "Valiant" and "Lion". Before Watchmen is a series of comic books published by DC Comics in 2012.  Acting as a prequel to the 1986 12-issue "Watchmen" limited series by writer Alan Moore and artist Dave Gibbons, the project consists of eight limited series and one one-shot (though two were initially planned) for a total of 37 issues. Watchmen is an American comic-book limited series published by DC Comics in 1986 and 1987, and collected in 1987.  The series was created by a British collaboration consisting of writer Alan Moore, artist Dave Gibbons, and colorist John Higgins.  "Watchmen" originated from a story proposal Moore submitted to DC featuring superhero characters that the company had acquired from Charlton Comics.  As Moore's proposed story would have left many of the characters unusable for future stories, managing editor Dick Giordano convinced Moore to create original characters instead. Saturday Morning Watchmen is a Newgrounds and YouTube viral video published on March 5, 2009, the day before the release of the live-action "Watchmen" film.  The video parodies the DC Comics limited series "Watchmen" by Alan Moore and Dave Gibbons, claiming to be a clip from a 1980s Saturday morning cartoon based on the series.  The video was animated, written, composed and sung by Harry Partridge and voiced by Partridge, Joshua Tomar, and Hans Van Harken.  It pokes fun at the tendency of the campy nature of 1980s animation to sanitize superheroes and other violent themes.  It features many of the mainstays of 1980s cartoon films, like catchy rock themes, and references to the openings of "Thundercats", "Teenage Mutant Ninja Turtles", "Jem", "The Legend of Zelda", and "Scooby-Doo".  On the Newgrounds site, Partridge stated the video "combines two huge passions of mine, one being the comic genius that is Alan Moore and the other being kids' programming from the late '80s, which I would say is my biggest animation inspiration."
Answer: 1986 and 1987