Sophia Hollander is an award-winning journalist and editor whose work has appeared in The New Yorker, The New York Times and The Wall Street Journal. She recently co-edited the book, The Urbanist: Dan Doctoroff and the Rise of New York, a collection of more than 50 essays from historians, journalists and City Hall insiders charting New York's recovery from 9/11.

James Horn, historian and president of the Jamestown Rediscovery Foundation, is the author of A Brave and Cunning Prince: The Great Chief Opechancanough and the War for America, among other books.

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.