21. Benito Mussolini after a bullet grazed his nose on April 7, 1926.
22. Titanic survivors, mostly crew, pose with their friends and family after returning home to Southampton, England, April 29, 1912.
24. A black Union soldier sits, posted in front of a slave auction house on Whitehall Street in Atlanta, Georgia, 1864.
25. Northrop YB-49 on a runway, 1948.
U.S. Air Force photo.