DGA773135: Portrait of Mikhail Alexandrovich Bakunin (Tver, 1814-Bern, 1876), Russian philosopher, revolutionary and theorist of collectivist anarchism, engraving / Bridgeman Images

DGA772740: Group of slaves being marched onwards, engraving / Bridgeman Images

DGA772757: Portrait of Mehemet Ali or Muhammad Ali (Kavala, 1769-Alexandria in Egypt, 1849), governor and later King of Egypt, engraving, Egypt 19th century / Bridgeman Images

DGA772762: Portrait of Alexei Borisovich Lobanov-Rostovskij (1824-1896), prince and politician, engraving, Russia, 19th century / Bridgeman Images

DGA772764: Poster celebrating Poland's liberation from the Russians and Germans, 1920, Poland, 20th century / Bridgeman Images

DGA772765: Italian artillery in Abyssinia, engraving, First Italo-Ethiopian war (1895-1896), Ethiopia, 19th century / Bridgeman Images

DGA772773: Portrait of Mihail Kogalniceanu (Iasi, 1817-Paris, 1891), Romanian lawyer, historian and politician / Bridgeman Images

DGA772778: Portrait of Wilhelm Ludvig Johannsen (Copenhagen, 1857-1927), Danish botanist and geneticist / Bridgeman Images

DGA772783: Transporting Herculaneum antiquities from the Museum of Portici to Naples Museum, engraving, Italy, 18th century / Bridgeman Images

DGA772797: Queen Mary II, c.1692-94 (oil on canvas), Vaardt, Jan van der (1647-1721) / Bridgeman Images

DGA772799: Portrait of Robert Arthur Talbot Gascoyne-Cecil, Third Marquess of Salisbury (Hatfield, 1830-1903), by George Frederic Watts (1817-1904), oil on canvas, United Kingdom, 19th century, Watts, George Frederic (1817-1904) / Bridgeman Images

DGA772806: Portrait of Anthony Ulrich of Brunswick-Luneburg (Hitzacker, 1633-Salzdahlum, 1714), by Bernhard Francke, oil on canvas, Germany, 17th century / Bridgeman Images

DGA772807: Portrait of Henry Peter Brougham (Edinburgh, 1778-Cannes, 1868), English jurist and politician / Bridgeman Images

DGA772832: Letter from Philip II of Spain to the Doge of Genoa, Ottaviano Oderico, November 6, 1566, from the Code of Privileges / Bridgeman Images

DGA772836: Sea monster, detail from cartographic map, 16th century / Bridgeman Images

DGA772843: Entertainment of Shigatse people, illustration from Trans-himalaya, discoveries and adventures in Tibet, by Sven Anders Hedin (1865-1952), 20th century / Bridgeman Images

DGA772865: Coat of arms of House of Natta Alfiano Island from Novara, Italy, 14th century / Bridgeman Images

DGA772869: Strategic Plan for Battle of Novara between Piedmont and Austrian troops, March 23, 1849, First War of Independence, Italy, 19th century / Bridgeman Images

DGA772870: Deer hunting in Canada, from Les Voyages de la Nouvelle France, by Samuel de Champlain, engraving, 1632 / Bridgeman Images

DGA772872: Young Giuseppe Garibaldi (1807-1882), engraving, Italy, 19th century / Bridgeman Images

DGA772873: Young Giuseppe Garibaldi (1807-1882) repulsing attack by pirates in Mediterranean, 1825, engraving, 19th century / Bridgeman Images

DGA772881: Giuseppe Garibaldi (1807-1882) and Hunters of Alps in Italy, 1859, Engraving, Second Italian War of Independence, Italy, 19th century / Bridgeman Images

DGA772886: Giuseppe Garibaldi (1807-1882) during Battle of Milazzo, July 20, 1860, engraving, Expedition of Thousand, Italy, 19th century / Bridgeman Images

DGA772891: Giuseppe Garibaldi (1807-1882), arriving in Marseille, being received by Leon Gambetta, 1870, engraving, France / Bridgeman Images

DGA772914: Mortars, engraving, Germany, 16th century / Bridgeman Images

DGA772917: Hall of Bank of England, London, Engraving, United Kingdom, 19th century / Bridgeman Images

DGA772923: Federal Hall in New York, home of U.S. Congress, 1790, engraving by Amos Doolittle, based on drawing by Peter Lacour, USA / Bridgeman Images

DGA772935: Italy and defilers of Temple, satirical cartoon by Taccani, Italy, 19th century / Bridgeman Images

DGA773136: Membership card for Italian Socialist Party, 1906, Italy / Bridgeman Images

DGA773140: Tree of Liberty with motto of French Revolution, 1793, France / Bridgeman Images

DGA773143: French army crosses Scrivia, painting by Giuseppe Pietro Bagetti (1764-1831), Napoleonic wars, Italy, 18th century, Bagetti, Giuseppe Pietro (1764-1831) / Bridgeman Images

DGA773161: Marriage of Marie-Caroline de Bourbon, Princess of Two Sicilies and Charles Ferdinand, Duke of Berry, fresco by Louis Nicolas Lemasle (1788-1876), Royal apartments in Palace of Capodimonte, Naples, Italy / Bridgeman Images

DGA773171: Victor Emmanuel II entering Brescia, June 17, 1859, War of Independence, Italy, 19th century / Bridgeman Images

DGA773177: Arrival of Garibaldi in Naples September 7, 1860, by Antonio Licata (1810-1892), gouache on paper, Expedition of Thousand, Italy, 19th century / Bridgeman Images

DGA773182: Samnite gladiator armed with sword and shield, bas-relief, Samnite civilization, 2nd century BC / Bridgeman Images

DGA773198: Morai of king at Kayakakoua, based on drawing by Jacques Arago (1790-1855), from Journey around the world, 1817-1820, by Louis de Freycinet (1779-1842), engraving, 19th century / Bridgeman Images