Dr. Vince Houghton, historian and curator at the International Spy Museum, is the author of Nuking the Moon and Other Intelligence Schemes and Military Plots Left on the Drawing Board.

Tera H. Hunter is professor of history and African American studies at Princeton University and the author of Bound in Slavery and To Joy My Freedom_, among other books. Follow her on Twitter:_ @TeraWHunter.

Tharik Hussain is a fellow at the Centre for Religion and Heritage at the University of Groningen and the Royal Geographical Society in London. He is also an award-winning author, journalist, travel writer. His latest book Ramadan Mubarak: a Little Inspiration for the Blessed Month has been published by Summersdale.

Volker Janssen is a professor of California State University Fullerton who specializes in the social, economic, and institutional history of California.

Joshua Kagavi is a writer, historian, artist and designer whose projects explore early athletic history, retro games, racism and nationalism and more. His work can be found at kagavi.com.

Keane is a writer, stand-up comedian and co-host of the Roundball Rock NBA podcast. He has contributed to "Another Period," "Billy On The Street," NBC, Comedy Central, ESPN The Magazine and McSweeney's. In 2014, the SF Bay Guardian named him the best comedian in San Francisco, then immediately went out of business. His handle on Twitter is @seankeane

Speechwriter Cody Keenan is former director of speechwriting for President Barack Obama.

Anne R. Keene is an Austin-based writer and author of The Cloudbuster Nine: The Untold Story of Ted Williams and the Baseball Team That Helped Win WWII.

Lesley Kennedy is a features writer and editor living in Denver. Her work has appeared in national and regional newspapers, magazines and websites.

From historical figures to present-day celebrities, Sara Kettler loves to write about people who've led fascinating lives.

Patrick J. Kiger has written for GQ, the Los Angeles Times, National Geographic, PBS NewsHour and Military History Quarterly. He's the co-author (with Martin J. Smith) of Poplorica: A Popular History of the Fads, Mavericks, Inventions, and Lore that Shaped Modern America.

Jeanhee Kim is an editor and writer in New York City.