An African-American Army cook at work in City Point, Va., sometime between 1860 and 1865. Food played a critical role in determining the outcome of the Civil War. Library of Congress hide caption

itoggle caption Library of Congress

Underwater archaeology researchers explore the site of the São José slave ship wreck near the Cape of Good Hope in South Africa. Susanna Pershern/Courtesy of U.S. National Parks Service hide caption

itoggle caption Susanna Pershern/Courtesy of U.S. National Parks Service

After years as punk rockers, Jeneda (right) and Clayson Benally formed the band Sihasin, which means "hope" in Navajo. "We have every possibility to make positive change," says Jeneda. Courtesy of Sihasin hide caption

itoggle caption Courtesy of Sihasin

Ken Jeong, right, stars in the new ABC series Dr. Ken. Jeong appears with, from left, Kate Simses, Tisha Campbell-Martin and Jonathan Slavin. Danny Feld/ABC hide caption

itoggle caption Danny Feld/ABC

In 2014, BookCon responded to the We Need Diverse Books campaign by inviting it to form its own panel. Pictured here (from left): I.W. Gregorio, Mike Jung, Matt de la Pena, Grace Lin and Jacqueline Woodson. Courtesy of ReedPOP hide caption

itoggle caption Courtesy of ReedPOP

David Oyelowo plays an American Army veteran living with his mother in HBO's Nightingale. HBO hide caption

itoggle caption HBO

Democratic presidential hopeful Hillary Clinton speaks with Frederic Hunt, a minister at First Calvary Baptist Church, during a campaign stop Wednesday at The Main Street Bakery in Columbia, S.C. Richard Shiro/AP hide caption

itoggle caption Richard Shiro/AP