EVB2936505: Polio (Poliomyelitis) virus, the cause of Infantile Paralysis, was discovered in 1908 by Karl Landsteiner. The vaccine for polio was developed between 1948 and 1953, when the researchers were able to grow large amounts of the virus, and Jonas Salk developed a safe killed-virus vaccine / Bridgeman Images
EVB2936233: General Leslie Groves (1896-1970), walking across the site of the first atomic bomb blast site at Alamogordo, N.M. in July 1945. Groves was the military leader of the Manhattan Project to develop the Atomic Bomb. He was played by Paul Newman in the 1989 movie, FAT MAN AND LITTLE BOY / Bridgeman Images
EVB2936404: Plague patient. A physician (center front) is taking the pulse of a patient while he breaths through sponge soaked in herbs to protect against evil emanations from the victim. Two men with torches provide light. Three women attend to the patient. From Joannes de Ketham's FASCICULO DE MEDICINA, 1493. Ketham was a German physician living in Italy at the end of the fifteenth century / Bridgeman Images
EVB2936324: Glenn Martin (1886-1955), delivering newspapers in his airplane. He built his first airplane in 1909, and his first airplane factory in 1912 in Los Angeles, California. He successfully promoted his airplanes by stunt flying, and other attention getting gimmicks. c. 1911 / Bridgeman Images
EVB2936485: European portrait of Abu Bakr Muhammad Ibn Zakariy Razi (known in Europe as Rhazes or Rasis),(865-925). The Persian scholar and physician is considered one of the greatest physicians of the Islamic world. He holds his KITAB AL-HAWI, (Comprehensive Book), which synthesized his the medical knowledge of the Greeks, Syrians, Arabs, and Indians. 1493 German woodcut / Bridgeman Images
EVB2936588: Florence Nightingale (1820-1910), ministering to soldiers at Scutari, a suburb of Istanbul (across the Bosporus from Istanbul) during the Crimean War. She defied her wealthy family by adopting the lower class profession of nursing. With her education and social position, she reformed the profession and British treatment of sick and wounded soldiers. 1854. Lithograph by Robert Riggs, c. 1930 with modern watercolor / Bridgeman Images