PICTURE CREDITS

Getty Images: Bettmann/Corbis: 13

Library of Congress: 62, 65, 165, 184, 187, 189, 316; Gretter Studio: 255

National Archives: 79

NASA: Kathryn Hansen: 290

New York Historical Society: 3

The New York Times: 5, 32, 53, 69, 158, 297; Lynsey Addario: 259; M. Scott Brauer: 233; Tom Brenner: 182; Don Hogan Charles: 202; Fred R. Conrad: 114; Fabrizio Costantini: 156; Stephen Crowley: 270, 334; Suzanne DeChillo: 178; Gabriella Demczuk: 339; Matt Eich: 219; Angel Franco: 118; Ruth Fremson: 212; Carl T. Gossett Jr.: 191; Eddie Hausner: 264; Todd Heisler: 144, 224, 227; Paul Hosefros: 140; Sandy Huffaker: 235; Jessica Kourkounis: 303; Sara Krulwich: 35; Vincent LaForet: 49; Chang W. Lee: 245; Meyer Liebowitz: 19; Doug Mills: 292; Erin Schaff: 241; Hilary Swift: 277; George Tames: 104, 295, 312, 330; Eric Thayer: 307; William Widmer: 59; Jim Wilson: 43; Damon Winter: xvi; Ty Wright: 252