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A view of Hadrian's Wall at Cuddy's Crags, looking east along the wall, half a mile west of Housesteads Roman Fort.

The ronin attack the principal gate of Kira's mansion, by Katsushika Hokusai (1760-1849), Act XI, Scene 2 of the Chushingura.

The famous final portrait of Charlotte Corday, painted in her prison cell hours before her execution by Jean-Jacques Hauer, an officer of the National Guard, in 1793. Current location unknown, but a copy is in...

A map showing the extent of the Armenian Empire under the Artaxiad ruler Tigranes the Great (r. c. 95 - c. 56 BCE)

An 1871 oil painting of a steam hammer invented by the Scotsman James Nasmyth (1808-1890) in 1839 during the Industrial Revolution. The steam-powered machine lowered a weight onto an anvil using gears which allowed for both...

Samuel Crompton invented the spinning mule in 1779, which greatly increased the speed of spinning yarn for textile production. It made finer and more uniform yarn than previous machines and had many more spindles, up to...

Priam's Treasure, which Heinrich Schliemann claimed to have found at Troy. The collection was divided in 1880, so this photograph was most likely taken before then.

A replica of the electromagnet invented by the Canadian engineer William Sturgeon (1783-1850). Sturgeon first devised the electromagnet in 1825; this version was invented around 1832. It was used to create a magnetic...

A map illustrating the campaigns of Tang Dynasty emperor Taizong (r. 626-649 CE) against the Xiyu states in China.

The organ of the New Church in Arnstadt, Germany. This organ was first tested and then played regularly by the German composer Johann Sebastian Bach (1685-1750), appointed organ master in 1703.