Serhii Plokhy is the professor of history at Harvard University and the director of the university’s Ukrainian Research Institute. He is the author of numerous books, most recently, Lost Kingdom: The Quest for Empire and the Making of the Russian Nation and Chernobyl: The History of the Nuclear Catastrophe.

Bryan Pollard is a citizen of the Cherokee Nation and former editor of the Cherokee Phoenix. He is currently the associate director of the Native American Journalists Association and a former John S. Knight Journalism Fellow at Stanford University. Follow him on Twitter @cherokee_editor.

Crystal Ponti is a freelance writer from New England with a deep passion for exploring the intersection of history and folklore. Her work has also appeared in The New York Times, A&E Crime & Investigation, Washington Post, USA Today, and BBC, among others. Find her @HistoriumU, where she also co-hosts the monthly #FolkloreThursday event.

Kevin Powell, activist, writer, public speaker, is the author of numerous books, including his critically-acclaimed autobiography, The Education of Kevin Powell: A Boy’s Journey into Manhood. You can follow him on twitter, @kevin_powell, or email him, kevin@kevinpowell.net.

Jessica Prois is a freelance writer and editor based in New York. She's the founder and former executive editor of HuffPost Asian Voices, and a writer for NBC, Cosmopolitan, Elle, and New York Magazine.

Sarah Pruitt has been a frequent contributor to History.com since 2005, and is the author of Breaking History: Vanished! (Lyons Press, 2017), which chronicles some of history's most famous disappearances.

Willard Sterne Randall, author of The Founders' Fortunes: How Money Shaped the Birth of America, won the National Magazine Award during a 17-year journalism career before graduate studies at Princeton. Author of six Founding Father biographies, he is professor emeritus of history at Champlain College.

Eric Rauchway is the author of several books on U.S. history including Winter War and The Money Makers. He teaches at the University of California, Davis, and you can find him on Twitter @rauchway.

Jodi Rave is the founder of the Indigenous Media Freedom Alliance based on the Fort Berthold Reservation in North Dakota.

April Reign, a writer, editor, speaker and former lawyer, is the creator of the #OscarsSoWhite campaign and the senior director of marketing for Fractured Atlas.

Sam Robinson, who has covered sports for nearly a decade, is based in Kansas City, Missouri. He writes mostly about the NFL.