Images

Oil on canvas by F. Ménageot, 1781, Amboise, Royal Castle, Death of Leonardo da Vinci in the arms of Francis the First. Leonardo da Vinci died at the Cloux Manor (known as the Clos-Lucé today) on 2 May 1519, in Amboise, France. To represent...

A map illustrating the course of a series of civil wars in the Kingdom of England between the houses of Lancaster and York for the crown. Known today as the Wars of the Roses (a term coined in the 19th century by Sir Walter Scott), this dynastic...

Sweat lodge frame - Cheyenne, photo by Edward S. Curtis, 1910. Library of Congress, Washington D.C.

Bringing the Sweat-lodge Willows - Piegan, photo by Edward Sheriff Curtis, 1910. Museum of Photographic Arts, San Diego.

Sweat lodge, Kiowa camp on the Washita, illustration from the Annual report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880.

Frame of a traditional Native American sweat lodge, photo by Chorazy Jane, U.S. Fish and Wildlife Service.

Napoleon greets soldiers of the 7th Regiment at Grenoble, after his return to France at the beginning of the Hundred Days period (1815). Oil on canvas by Charles de Steuben, 1818. Private collection.

A modern painting showing the Dutch mathematician and astronomer Christiaan Huygens (1629-1695) alongside his partner in clockmaking Salomon Coster. Painting by Hugh Chevins, 1955. (Science Museum, London)

The eyepiece, main lens housing, and a drawing illustrating the aerial telescope designed and built by the Dutch mathematician and astronomer Christiaan Huygens (1629-1695) towards the end of the 17th century. (Science Museum, London)

A reconstructed model of a pendulum clock designed and built by the Dutch mathematician and astronomer Christiaan Huygens (1629-1695). The device has two weights and two pulleys which are driven by the swing of the pendulum. (Science Museum...