GCL3368831: PAVEL YABLOCHKOV (1847-1894) Russian electrical engineer. Wood engraving, French, late 19th century. / Bridgeman Images

GCL3368832: YABLOCHKOV CANDLE A Yablochkov candle, patented by Pavel Yablochkov in 1876. Wood engraving, French, late 19th century. / Bridgeman Images

GCL3368833: YABLOCHKOV CANDLE Diagram of a globe light containing a Yablochkov candle, patented by Pavel Yablochkov in 1876. Wood engraving, French, late 19th century. / Bridgeman Images

GCL3368837: GRAPHOPHONE The graphophone, patented in 1886 by Charles Sumner Tainter, Alexander Graham Bell, and Chichester Bell. Wood engraving, French, late 19th century. / Bridgeman Images

GCL3368840: MUHAMMED ALI (1942-2016) Né Cassius Clay. American heavyweight boxer. Autograph signature. / Bridgeman Images

GCL3368862: SIR LAWRENCE ALMA-TADEMA (1836-1912). British (Dutch-born) painter. Photographed c.1880. / Bridgeman Images

GCL3368866: WILLIAM J. BRENNAN (1906-1997). William Joseph Brennan. American jurist. Photograph, 1972. / Bridgeman Images

GCL3368870: ROBERT BOYLE (1627-1691) English chemist and physicist. Robert Boyle's first air pump. Line engraving from Boyle's 'The Spring and Weight of the Air,' 1660. / Bridgeman Images

GCL3368872: ROBERT BOYLE (1627-1691) English chemist and physicist. Title page of the rare 1669 Latin edition of Boyle's 'Formes and Qualities.' / Bridgeman Images

GCL3368873: ROBERT BOYLE (1627-1691) English chemist and physicist. Title pages of the two issues of Boyle's 'Cosmicall Qualities,' 1671. / Bridgeman Images

GCL3368877: MAURICE BARRYMORE (1847-1905). American actor. In the role of Orlando in 'As You Like It,' 1891. Contemporary American newspaper engraving. / Bridgeman Images

GCL3368883: WILLIAM H. BRAGG (1862-1942) Sir William Henry Bragg. English physicist. Autograph signature. / Bridgeman Images

GCL3368885: AUBREY VINCENT BEARDSLEY , 1890s (b/w photo), Russel & Son (19th-20th century) / Bridgeman Images

GCL3368888: REXFORD GUY TUGWELL (1891-1979). American economist. Photographed in 1922. / Bridgeman Images

GCL3368890: WILLIS VAN DEVANTER (1859-1941). American jurist. / Bridgeman Images

GCL3368891: JAMES CLARK McREYNOLDS (1862-1946). American jurist. / Bridgeman Images

GCL3368899: ANDREW JACKSON (1767-1845) 7th President of the United States. Mezzotint, 19th century. / Bridgeman Images

GCL3368902: ELIZABETH BARRETT BROWNING (1806-1861). Title page of spurious first edition of Elizabeth Barrett Browning's 'Sonnets,' printed at Reading, England, 1847. / Bridgeman Images

GCL3368905: Victoria de los Angeles (1923-2005), Spanish opera singer, as Cio Cio San in Puccini's opera 'Madama Butterfly', 1954 / Bridgeman Images

GCL3368916: LUSITANIA, 1908-1914 The Cunard steamship 'Lusitania', c.1908-1914. / Bridgeman Images

GCL3368927: AMBASSADOR & DALAI LAMA An ambassador from the Chinese emperor, seated at left, seeks an audience with the Dalai Lama, religious and political leader of Tibet. Wood engraving, late 19th century. / Bridgeman Images

GCL3368928: JUVENILE CRIME, 1868 A six year old, sentenced to the House of Refuge on Blackwell's Island, New York City, for vagrancy, pleads unavailingly for mercy for his first offense, 1868. Contemporary American wood engraving. / Bridgeman Images

GCL3368932: DAISY BATES (1914-1999) American civil rights activist. / Bridgeman Images

GCL3368933: DAISY BATES (1914-1999) American civil rights activist. Bates (left) picketing in New York City in support of anti-segregation 'sit-in' protests in the South, early 1960s. / Bridgeman Images

GCL3368934: RALPH DAVID ABERNATHY (1926-1990). American clergyman and civil rights activist. Photographed in 1973. / Bridgeman Images

GCL3368937: LEATHER MANUFACTURE, 1800 Cleaning and liming hides. Aquatint engraving, c.1800. / Bridgeman Images

GCL3368938: EVICTION, 1873 A family being evicted by their landlord. Wood engraving, American, 1873. / Bridgeman Images

GCL3368944: CIVIL WAR: GAS GENERATORS Union soldiers in Washington, D.C., 1863, with balloon gas generators used by Thaddeus S.C. Lowe's Army Aeronautic Corps when surveying Confederate troop movements across the Potomac River. / Bridgeman Images

GCL3368946: CIVIL WAR: UNION FORT Union soldiers at Fort Totten, Washington, D.C., during the American Civil War. / Bridgeman Images

GCL3368955: FREDERIC CHOPIN (1810-1849) Polish composer and pianist. Photographed in 1849. / Bridgeman Images

GCL3368958: PULLMAN STRIKE, 1894 Six hundred freight cars at the Panhandle yards, Chicago, set afire by rioting workers during the Pullman strike on the evening of 6 July 1894. Illustration from a contemporary American newspaper. / Bridgeman Images

GCL3368961: JOHN MILTON HAY (1838-1905) American statesman and author. Oil over a photograph, 1904. / Bridgeman Images

GCL3368964: JOHNSTON BLAKELEY (1781-1814). American naval commander. Engraving of the obverse of the Congressional medal posthumously awarded Blakeley for his defeat of the British brig 'Reindeer' in the English Channel while in command of USS 'Wasp,' 28 June 1814. / Bridgeman Images

GCL3368965: ITALIAN RESTAURANT, 1909 Scene in Fior d'Italia Restaurant on Broadway, San Francisco, 1909. / Bridgeman Images