EVB2936977: National Women's Party demonstration with a bonfire in front of the White House in 1918. The banner questions Wilson's commitment to democracy for his failure to support women's suffrage / Bridgeman Images

EVB2936942: Italian American mother with five young children in her Providence, Rhode Island home. Photograph by Lewis Hine, November 1912, Hine, Lewis Wickes (1874-1940) / Bridgeman Images

EVB2936954: Lucy Burns (1879-1966), American suffragist and women's rights advocate speaking to a crowd of men in New York City. c. 1913 / Bridgeman Images

EVB2937046: The guns that protect the President. Members of the White House police force that are taking part in the third annual marksmanship match. August 2, 1938 / Bridgeman Images

EVB2936306: Helen Jacobs, (1908-1997) American tennis player who won ten Grand Slam titles. 1934 / Bridgeman Images

EVB2936309: Mildred 'Babe' Didrikson, (1911-1956), running in the first heat of the 80-meter hurdles, at the 1932 Olympics at Los Angeles. She won the Gold Medal for the event / Bridgeman Images

EVB2936312: Jim Ryun (b. 1947), winning the 1966 Baxter Mile in the New York Athletic Club indoor games at Madison Square Garden. In 1966, Ryun set world records in the mile and the half-mile runs / Bridgeman Images

EVB2936330: The John Bull locomotive was a is a British-built railroad steam engine that operated in the United States, from 1831 to 1866. It was built by Robert Stephenson and Company and operated for the Camden and Amboy Railroad, the first railroad in New Jersey / Bridgeman Images

EVB2936416: Africans of Natal, now a province in eastern Republic of South Africa, line up for vaccination during an 1904 smallpox epidemic after the Colonial government ordered universal vaccination. The woman at the head of the line looks away as the vaccine is administered to her arm / Bridgeman Images

EVB2936419: Jonas E. Salk (1914-1995), American medical researcher who developed the first Polio vaccine, holding tray of test tubes. c. 1955 / Bridgeman Images

EVB2936422: Patients and nuns at the Hospital of Hotel Dieu in Paris. Interior of a medieval ward with patients (some two to a bed) being attended by nuns, one of whom is taking a patient's pulse. 19th century wood engraving after painting in 'Le Livre de Vie Active de l'Hotel Dieu' , c.1482 / Bridgeman Images

EVB2936420: American National Red Cross tent hospital in Auteuil, France for treating gassed soldiers during World War I. 1917-18, Unknown photographer, (20th century) / Bridgeman Images

EVB2936423: Exterior of Hotel-Dieu, Paris, with nuns at the doors, receiving a patient on a stretcher. 19th century wood engraving after painting in 'Le Livre de Vie Active de l'Hotel Dieu', c.1482 / Bridgeman Images

EVB2936440: A pregnant woman sitting in a birthing chair is being attended to by three midwives, one ready to receive the baby, the second standing behind the chair, and the third standing at the woman's side comforting her. Implements are on a table in background. Engraving from Swiss physician, Jakob Rueff's, THE CONCEPTION AND GROWTH OF MAN, 1580 / Bridgeman Images

EVB2936465: Heart surgery performed in the 1950s / Bridgeman Images

EVB2936446: Public health education in Red China, 1957 (poster) / Bridgeman Images

EVB2936473: CAT (computer-aided tomography) scan being performed on a patient at the National Institute of Health, Bethesda, Maryland. 1987 / Bridgeman Images

EVB2937237: Taft Court. United States Supreme Court group portrait. Center front is Chief Justice William Howard Taft. c. 1925 / Bridgeman Images

EVB2937273: Three Russian convicts building a camp near the Eastern Siberian Railroad. Throughout the 19th century, Russia populated its easternmost territories with political and criminal prisoners. c. 1895 photo by William Henry Jackson, Jackson, William Henry (1843-1942) / Bridgeman Images

EVB2937316: Newark, New Jersey. Aerial view, 1874 / Bridgeman Images

EVB2937342: At the height of a polio epidemic, Dr. Harry Seanor, fastens the one pound lung on an eight year old boy, to show the difference in size to that of the 700 pound lung at left. Iron lungs were respirators to assist patients breathing. 1949 / Bridgeman Images

EVB2937369: Peaceful use of atom. Two female technicians prepare radioactive isotopes for medical and industrial use. They work with remote controls and are shielded by a lead barrier, at the Radiochemical Center, in Amersham England / Bridgeman Images

EVB2937409: Workmen assemble Project Mercury space capsules for American astronauts, at McDonell Aircraft Corporation, St. Louis, Missouri in 1961 / Bridgeman Images

EVB2937430: Japanese American soldiers enjoy the music of a Hawaiian ukulele as they wait to detrain at Camp Shelby, Mississippi in 1943. While some Japanese volunteered for military service, a significant and often under reported umber choose to not to / Bridgeman Images

EVB2936380: Joseph Merrick (1862-1890), known as the 'Elephant Man', suffered from Neurofibromatosis, a congenital disorder. Standing profile engravings of Merrick were published in the British Medical Journal in 1886. He was portrayed by John Hurt in the 1980 film THE ELEPHANT MAN / Bridgeman Images

EVB2936333: 'William Crooks' a 1861 locomotive of the Great Northern Railway with tender and cars. The tender is a special car to carry fuel and water to keep the locomotive running / Bridgeman Images

EVB2936348: Front and back views of a human figure with numerous acupuncture points and meridians identified. Between the figures, but not to scale, are three acupuncture needles. Illustration from a 1825 French book on Chinese acupuncture by Jean Baptiste Sarlandiere / Bridgeman Images

EVB2936360: Pottsville, PA view from Sharp Mountain. 1833 / Bridgeman Images

EVB2936428: Diphtheria antitoxin was made by inoculating horses with diphtheria bacteria, then bleeding the animals to obtain their blood serum. The serum neutralized the diphtheria toxin causing the patient’s symptoms / Bridgeman Images

EVB2936441: Standing obstetrical examination as illustrated in the 1822 medical classic Nouvelles Demonstrations D'ACCOUCHEMENS (DEMONSTRATION OF NEW OBSTETRICS) by Jacques Pierre Maygrier (1771-1835) . The physician depicted is thought to be a portrait of Maygrier himself / Bridgeman Images

EVB2936474: Fever Bag of the 17th century. At top a women prepares to pour cold water in to the bag at the patient's neck, which will cool the fevered patient before it empties in the a bucket at the foot of the bed. European engraving of 1672 / Bridgeman Images

EVB2936467: Fully dressed female patient lying on the operating table, surrounded by the surgeons of Massachusetts General Hospital in one of the earliest operations performed under ether anesthesia. Among the surgeons is Dr. John Collins Warren, the doctor who first demonstrated surgical anesthesia / Bridgeman Images

EVB2936488: Title page to the treatise on urine analysis in the late medieval book, HORTUS SANITATIS (Origin of Health). The book describes herbal remedies and cites the works of Galen, Albertus Magnus and Dioscorides. 1491 woodcut / Bridgeman Images

EVB2937700: Sailors in the National Maritime Union hiring hall for deck and engine hands, watching the board where the jobs are posted. New York, c. 1955 / Bridgeman Images

EVB2937440: Large-scale spraying of Syndeet, an insecticide containing DDT, on a farm in Illinois in 1948. The environmentally destructive chemical was used indiscriminately until it was banned in 1972 / Bridgeman Images

EVB2937443: Protesters of 'Operation Breath Free' wear surgical masks as they enter their cars at South Beach, Staten Island. 1967 / Bridgeman Images