Question: What is the founding year of the online magazine that David Plotz is currently the CEO of?

full_context: Document 1: David Rothkopf: David J. Rothkopf (born 24 December 1955) is a professor of international relations, political scientist, journalist. He is CEO, The Rothkopf Group, Visiting Prof., Columbia U./SIPA, Vis. Scholar, CEIP, Author of National Insecurity & The Great Questions of Tomorrow. He has been a longtime contributor to Foreign Policy and was CEO and editor of the FP Group from 2012 to May 2017. The FP Group publishes Foreign Policy magazine, ForeignPolicy.com, presents FP Events, and is a division of Graham Holdings Company. Rothkopf was first announced as CEO and Editor-at-Large in 2012, when Foreign Policy was owned by the Washington Post Company. He has been a regular contributor to the magazine for many years and continues to write columns in his role as editor.
Document 2: The Federalist (website): The Federalist is an English-language online magazine that covers politics, policy, culture, and religion. The site was co-founded by Ben Domenech and Sean Davis and launched in September 2013. Domenech serves as publisher of "The Federalist".
Document 3: The Atlantic: The Atlantic is an American magazine and multi-platform publisher, founded in 1857 as The Atlantic Monthly in Boston, Massachusetts.
Document 4: Salon (website): Salon is an American news and opinion website created by David Talbot in 1995. The site is owned by Salon Media Group (OTCQB: SLNM ). It focuses on U.S. politics, culture, and current events from a politically progressive or left-wing perspective.
Document 5: David J. Pecker: David J. Pecker is the Chairman and CEO of American Media (publisher). He is the publisher of "National Enquirer", "Star", "Sun", "Weekly World News", "Globe", "Men's Fitness", "Muscle and Fitness", "Flex", "Fit Pregnancy" and "Shape". He has served in his current role at AMI since 1999 and previously served as Chairman and CEO of Hachette Filipacchi Médias. He began his career as an accountant and, at CBS Magazines, rose to vice president and controller. As the junior of four employees in a partnership, CBS Magazines was acquired in a leveraged buyout and sold to Hachette. He soon after became CEO at Hachette when the other three partners resigned.
Document 6: Atlas Obscura: Atlas Obscura is an online magazine, led by American journalist David Plotz. It was founded in 2009 by author Joshua Foer and documentary film-maker Dylan Thuras. It features pieces on a variety of topics, including travel and exploration, history, science and some news.
Document 7: Atlantic Media: Atlantic Media is an American print and online media company owned by David G. Bradley and based in the Watergate in Washington, D.C. The company publishes several prominent news magazines and digital publications including "The Atlantic," "Quartz", "Government Executive", "Defense One" and those belonging to its National Journal Group subsidiary: "National Journal", "The Hotline", "National Journal Daily" (previously known as "Congress Daily"), and "Technology Daily". The National Journal Group also publishes books and directories, the most known of which is the biennial "Almanac of American Politics".
Document 8: The Attic (magazine): The Attic Magazine is an online music magazine. The magazine has branches in Bucharest, Romania, and Oslo, Norway, and additional mobile offices in various European countries. The magazine focuses on a wide variety of music genres, and also features editorial investigation concerning different world cultures. The magazine has also been involved in organizing significant musical events including the Outernational Days festival and other events in the capital. The magazine has been featured in several Romanian magazines including "Dilema veche" and "RomaniaLibera.ro"., British pop culture magazine, "The Quietus", and the British avant-garde music magazine, "The Wire.
Document 9: Jacob Weisberg: Jacob Weisberg (born 1964) is an American political journalist, serving as editor-in-chief of Slate Group, a division of Graham Holdings Company. Weisberg is also a "Newsweek" columnist. He served as the editor of "Slate" magazine for six years, until stepping down in June 2008. He is the son of Lois Weisberg, a Chicago social activist and connector mentioned in Malcolm Gladwell's book "The Tipping Point".
Document 10: Slate (magazine): Slate is an online magazine that covers current affairs, politics, and culture in the United States from a liberal perspective. It was created in 1996 by former "New Republic" editor Michael Kinsley, initially under the ownership of Microsoft as part of MSN. On December 21, 2004, it was purchased by The Washington Post Company, later renamed the Graham Holdings Company. Since June 4, 2008, "Slate" has been managed by The Slate Group, an online publishing entity created by the Graham Holdings Company to develop and manage web-only magazines. "Slate" is based in New York City, with an additional office in Washington, D.C.
Document 11: David Plotz: David Plotz (born January 31, 1970) is an American journalist and is currently the CEO of "Atlas Obscura", an online magazine devoted to discovery and exploration. A writer with "Slate" since its inception in 1996, Plotz was the online magazine's editor from June 2008 until July 2014, succeeding Jacob Weisberg.
Document 12: Julia Turner (journalist): Julia Turner is an American journalist and critic. She has been the editor-in-chief of online magazine "Slate" since 2014, replacing David Plotz. She was one of a panel of three hosts on WNYC's Gabfest.
Document 13: L'Obs: L’Obs ] , previously known as Le Nouvel Observateur (1964-2014), is a weekly French news magazine. Based in the 2nd arrondissement of Paris, it is the most prominent French general information magazine in terms of audience and circulation. Its current editor is .
Document 14: Slatest: Slatest, also known as The Slatest, is a news blog that has been published by Slate since 2009, when it was launched to replace their 12-years-old "Today's Papers" feature. It also replaced Slate's magazine aggregator feature "In Other Magazines". In 2011, the website was redesigned; the effects included making its homepage more closely resemble the Huffington Post and creating a home for Slate's "Trending News Channel" video project. In 2012, it was redesigned again, this time to focus more on the writing and editorial decisions of Josh Voorhees, who was then the blog's editor. This redesign also gave the blog a new slogan: "Your news companion." After this redesign was announced, Voorhees said, “The average Slate writer takes a little bit longer to craft a really definitive or provocative piece. The Slatest will always be that kind of ‘first responder’ for the site."
Document 15: The Slate Group: The Slate Group is a US online publishing entity established in June 2008 by Graham Holdings Company. Among the publications overseen by The Slate Group are Slate, Slate V, and ForeignPolicy.com.
ground_truth: 2009