Browse Items (194 total)

A statistical breakdown of the enslave population of the United States between 1790 and 1854. This accounts for gender and age demographics, population by region and state, and the mortality rate by state. This document also shows the enslaved…

Photograph showing the conditions of African Americans caught up in the convict leasing program.

The Russian flagship Tsarevitch passing HMS Victory, ca. 1915.

German submarines in a harbor, the caption, in German, says "Our U-Boats in a harbor." Front Row (left to right): U-22, U-20 (the sub that sank the Lusitania), U-19, and U-21. Back Row (left to right): U-14, U-10, and U-12.

The complex inner machinery of a U.S. submarine, amidships, looking aft.

American troops using a newly-developed acoustic locator, mounted on a wheeled platform. The large horns amplified distant sounds, monitored through headphones worn by a crew member, who could direct the platform to move and pinpoint distant enemy…

Turkish troops use a heliograph at Huj, near Aza City, in 1917. A heliograph is a wireless solar telegraph that signals by flashes of sunlight usually using Morse code, reflected by a mirror.

Telegraph office, room 15, Elysee Palace Hotel, Paris, France, Major R.P. Wheat in charge. September 4, 1918.

American troops aboard French-built Renault FT-17 tanks head for the frontline in the Forest of Argonne, France, on September 26, 1918.

British Mark I tank, apparently painted in camouflage, flanked by infantry soldiers, mules and horses.