Question: Was the magazine "Mandate", or " Black Inches", published first?

Context articles: Tros of Samothrace
The Mother Hive
Književna reč
Mandate (magazine)
W (magazine)
Playguy
Stan Leventhal
Guter Rat
Black Inches
Earth's Last Citadel

Tros of Samothrace is a fantasy historical novel by author Talbot Mundy.
 The story was composed of several novellas which were published originally in the American magazine "Adventure" during 1925 and 1926.
 It was published first together as a book during 1934 by Appleton-Century company.
"The Mother Hive" is a short story or fable by Rudyard Kipling about the decline and destruction of a hive of bees.
 It was published first in "Collier's Weekly" in the US on 28 November 1908.
 Later in December of the same year, it was published in the "Windsor Magazine" in the UK with a title of the "Adventures of Melissa".
Književna reč was a literary magazine that was published first in Yugoslavia, and then in Serbia from 1972 to 2004.
 It had a significant influence on Yugoslav literary and cultural scene, especially during 1980s.
 The magazine was publishing leading authors of the period, and also bringing literary news from the country and abroad.
Mandate was a monthly gay pornographic magazine.
 It was published in the United States and distributed internationally since April, 1975.
 Together with the other magazines of the Mavety Group, such as "Black Inches", it folded in 2009.
W is a monthly American fashion magazine published by Condé Nast, who purchased original owner Fairchild Publications in 1999.
 It was created in 1971 by the publisher of sister magazine "Women's Wear Daily", James Brady.
 The magazine is an oversize format – ten inches wide and thirteen inches tall.
 Stefano Tonchi is the editor of "W"; Lucy Kriz is the vice president and publisher.
 "W" magazine has a reader base of nearly half a million, 469,000 of which are annual subscribers.
 80 % of the magazine's readers are female and have an average household income of $135,840.
Playguy was an American gay pornographic monthly magazine that was geared to gay men under 25.
 It was established by George W. Mavety in 1976.
 It was published by Modernismo Publications, Ltd., which also published "Mandate", "Honcho", "Torso", "Inches", "Black Inches" and "Latin Inches".
 It was later published by Mavety Media Group Ltd. until it closed down in October 2009, nine years after Mavety's death in the year 2000.
Stan Leventhal (May 24, 1951 – January 15, 1995) was an American writer and magazine editor.
 Primarily known as the editor in chief of Heat Publications, a publisher of gay erotic magazines including "Mandate", "Torso" and "Inches", he also wrote and published several works of LGBT literature in the 1980s and 1990s.
 He published three novels and two short story collections during his lifetime; two additional novels were published following his death of AIDS in 1995.
Guter Rat (meaning "Good Advice" in English) is a German language monthly business and consumer magazine published first in the East Germany.
 The magazine is one of three East German magazines, namely "Eulenspiegel" and "das Magazin", which have survived German reunification.
Black Inches (ISSN 1084-2462  ) was a US-based gay pornographic magazine featuring African-American men.
 Published by Mavety Media alongside magazines such as "Mandate", it was established in 1993 and folded in 2009.
Earth's Last Citadel is a science fiction novel written by the American husband and wife team of C.L. Moore and Henry Kuttner.
 It was first published in 1943 in the magazine "Argosy" and in book form it was published first in 1964.