SZT3004636: German soldiers in a position built out of paper bales, 1915 (b/w photo) / Bridgeman Images

SZT3004639: German soldiers dig trenches, 1914 (b/w photo) / Bridgeman Images

SZT3004663: French soldiers building trenches during the FIrst World War (b/w photo) / Bridgeman Images

SZT3004681: German soldiers on the Western front, 1915 (b/w photo) / Bridgeman Images

SZT3004696: German moored balloon is filled, 1917 (b/w photo) / Bridgeman Images

SZT3004699: German field airport in Northern France, 1917 (b/w photo) / Bridgeman Images

SZT3004723: Rudolf Hess with Wolf-Ruediger 1938, (b/w photo) / Bridgeman Images

SZT3004762: Austrian machine gun position on the Eastern front, 1916 (b/w photo) / Bridgeman Images

SZT3004765: Austrian airplane flies above an Italian warship, 1917 (b/w photo) / Bridgeman Images

SZT3004494: Rent strike in New York during the Great Depression, 1932 (b/w photo) / Bridgeman Images

SZT3004500: Recruitment of unemployed African-American men for a work-creation project in Camp Dix, 1933 (b/w photo) / Bridgeman Images

SZT3004527: Business street in Chicago, 1929 (b/w photo) / Bridgeman Images

SZT3004551: Cinema in Berlin, 1919 (b/w photo) / Bridgeman Images

SZT3004569: Roland Freisler, 1942 (b/w photo) / Bridgeman Images

SZT3004578: Berlin broadcasting center, 1937 (b/w photo) / Bridgeman Images

SZT3004584: Women on Armistice Day, 1937 (b/w photo) / Bridgeman Images

SZT3004623: Start at the "Goldenes Motorrad von Berlin" (Golden Motorcycle of Berlin), 1904 (b/w photo) / Bridgeman Images

SZT3004626: German soldiers in front of the German command in Brussels, 1914 (b/w photo) / Bridgeman Images

SZT3004638: Stalls for horses on the Western front, 1914 (b/w photo) / Bridgeman Images

SZT3004653: German cavalry in the First World War, 1914 (b/w photo) / Bridgeman Images

SZT3004659: German engineers building barbed wire defenses (b/w photo) / Bridgeman Images

SZT3004683: German attack on the Western front, 1915 (b/w photo) / Bridgeman Images

SZT3004695: German soldiers fold a moored balloon, 1918 (b/w photo) / Bridgeman Images

SZT3004707: Heinrich von Treitschke (b/w photo) / Bridgeman Images

SZT3004775: German military airship after an emergency water landing, 1917 (b/w photo) / Bridgeman Images

SZT3004796: German soldiers prepare a meal in a dug-out, 1915 (b/w photo) / Bridgeman Images

SZT3004802: Burning village in Poland, 1915 (b/w photo) / Bridgeman Images

SZT3004774: German aviator passes on reconnaissance results, 1918 (b/w photo) / Bridgeman Images

SZT3004817: Coffin of the Duke of Reichstadt (Emperor of the French, Napoleon II) (b/w photo) / Bridgeman Images

SZT3004798: German soldiers in a trench during the Battle of Marne, 1914 (b/w photo) / Bridgeman Images

SZT3004847: Muhammad Ahmad al Mahdi (b/w photo) / Bridgeman Images

SZT3004822: Moscow 'Sucharevska' market, 1923 (b/w photo) / Bridgeman Images

SZT3004925: The steam locomotive 'Flying Scotsman' (b/w photo) / Bridgeman Images

SZT3004958: Work by Ernst Barlach (b/w photo) / Bridgeman Images

SZT3004964: Subhas Chandra Bose (b/w photo) / Bridgeman Images

SZT3005003: Mata Hari (b/w photo) / Bridgeman Images