Question: What are both Naval History and Blender?

full_context: Document 1: Bibliography of early U.S. naval history: Historical accounts for early U.S. naval history now occur across the spectrum of two and more centuries. This Bibliography lends itself primarily to covering early U.S. naval history beginning around the American Revolution period on through the 18th and 19th centuries and includes sources which cover notable naval commanders, Presidents, important ships, major naval engagements and corresponding wars. The bibliography also includes sources that are not committed to the subject of U.S. naval history per se but whose content covers this subject extensively.
Document 2: Bananafish Magazine: Bananafish is a magazine begun in 1987 in San Francisco, California, published under the name Seymour Glass, focusing on various aspects of underground culture, particularly musical genres such as noise music. The style of the magazine was a mix of interviews, articles, fiction, and music reviews, often written in Glass's absurdist, stream-of-consciousness writing style, which at times bordered on nonsense. The text was complemented by bizarre artwork and photographs, frequently unrelated to the articles they accompanied. One trademark of the magazine was its use of appropriated text and images from uncredited or unknown sources, taken from found objects picked up by Glass, other contributors, or readers. Another regular feature was the inclusion of a compilation 7" record or CD of music by artists profiled in the corresponding issue. Bananafish is often credited with giving many Americans their first exposure to Japanese noise musicians such as Merzbow and Solmania, as well as domestic noisemakers like Emil Beaulieau. It was not accepting submissions as of 2013, and had no web presence.
Document 3: Index Magazine: index Magazine was a prominent New York City based publication with in-depth interviews with prominent figures in art and culture. It was created by Peter Halley and Bob Nickas in 1996, running until late 2005. Covering the burgeoning Indie culture of the 1990s, index regularly employed such rising photographers as Juergen Teller, Terry Richardson, Wolfgang Tillmans, and Ryan McGinley, and featured interviews with figures including Björk, Brian Eno, Marc Jacobs, and Scarlett Johansson, mixing new talents and established names in music, film, architecture, fashion, art, and politics. In addition to famous personalities, the publication also featured a mix of interviews with not so-famous New York personalities such as Queen Itchie or Ducky Doolittle.
Document 4: National Geographic (magazine): National Geographic, formerly the National Geographic Magazine, is the official magazine of the National Geographic Society. It has been published continuously since its first issue in 1888, nine months after the Society itself was founded. It primarily contains articles about science, geography, history, and world culture. The magazine is known for its thick square-bound glossy format with a yellow rectangular border and its extensive use of dramatic photographs. Controlling interest in the magazine has been held by 21st Century Fox since 2015.
Document 5: American Heritage (magazine): American Heritage is a magazine dedicated to covering the history of the United States of America for a mainstream readership. Until 2007, the magazine was published by Forbes. Since that time, Edwin S. Grosvenor has been its publisher. Print publication was suspended early in 2013, but the magazine relaunched in digital format with the Summer 2017 issue after a Kickstarter campaign raised $31,203 from 587 backers. The publisher stated it also intended to relaunch the magazine's sister publication "Invention & Technology", which ceased print publication in 2011.
Document 6: America's Civil War: America's Civil War is a full-color history magazine published bi-monthly which covers the American Civil War. It was established in 1987 by editor Roy Morris Jr. It covers the battles, campaigns, leaders, and common soldiers of the Civil War. It contains thought-provoking essays on the way the war is remembered today as well as lengthy first-hand accounts of the war.
Document 7: North &amp; South (US magazine): North & South – The Official Magazine of the Civil War Society was a military history and general history bi-monthly magazine published in the United States concerning the American Civil War 1861–1865. As its title states, it was the official magazine of the "Civil War Society". It was often referred to as just "North & South." Keith Poulter is the magazine's founder and editor. The headquarters was in Tollhouse, California.
Document 8: Is this music?: Is this music? is an alternative music magazine based in Scotland, with a focus on the Scottish alternative music scene. Its first issue appeared in late 2003, featuring news of Bob Fairfoull's split from Idlewild, but its best known 'exclusive' was the first ever interview with Glasgow-based pop superstars Franz Ferdinand.
Document 9: Blender (magazine): Blender was an American music magazine that billed itself as "the ultimate guide to music and more". It was also known for sometimes steamy pictorials of celebrities. It compiled lists of albums, artists, and songs, including both "best of" and "worst of" lists. In each issue, there was a review of an artist's entire discography, with each album being analyzed in turn.
Document 10: Club (magazine): Club is a monthly American pornographic magazine which is a spin-off publication of the United Kingdom's "Club International". "Club" features sexually oriented articles, video reviews, and pictorials that include hardcore pornography, masturbation, dildo usage, and lesbianism.
Document 11: Research Chair in Naval History: The Secretary of the Navy's Research Chair in Naval History was established in 1987 by the then Naval Historical Center, Department of the Navy (now known as the Naval History & Heritage Command). This competitive appointment was designed to support, for up to three years, a scholar in researching and writing a major monograph on the history of the U.S. Navy since 1945.
Document 12: Playgirl: Playgirl is an American magazine that features general interest articles, lifestyle and celebrity news, in addition to semi-nude or fully nude men. In the 1970s and 1980s the magazine printed monthly and was marketed mainly to women, although it had a significant gay male readership in a period in which gay male erotic magazines were few.
Document 13: Home Media Magazine: Home Media Magazine is a trade publication that covers various aspects of the home entertainment industry, most notably DVD, Blu-ray, and digital distribution. Also covered is news relating to consumer electronics, video games, home video distributors, Video on Demand, and streaming, and Internet downloads of copyrighted content. The magazine includes reviews of new DVDs, Blu-ray Discs and digital downloads, and commentaries about issues affecting home entertainment. It consists of a monthly print publication and digital edition, a daily e-newsletter, and frequent "breaking news" alerts that take readers to the Home Media Magazine website, a constantly updated news and information resource. The publisher and editorial director is Thomas K. Arnold, a veteran entertainment journalist whose credits also include "USA Today", "Variety" and the "Los Angeles Times".
Document 14: Naval History (magazine): Naval History is a bi-monthly magazine published by the United States Naval Institute since 1987. The 72-page publication not only includes feature articles spanning the course of Naval History written by significant scholars of their subject, but also has standing features including: "Looking Back," "On Our Scope," "Naval History News," "Book Reviews," and "Museum Report."
Document 15: Hit Parader: Hit Parader was an American music magazine that operated between 1942 and 2008. A monthly publication, it was a general popular music title until the 1980s, when its focus turned to the genres of hard rock and heavy metal.<ref name="RBP/HP"> </ref> The magazine reached its peak during the 1980s as heavy metal music achieved high levels of popularity and commercial success.
ground_truth: magazine