Caste System: Did you mean...?

Map of the Five Nations, 1730 CE. Darlington map collection, Archives Service Center, University Library System, University of Pittsburgh, Pittsburgh Pittsburgh, PA US

A modern re-enactment of a traditional Korean wedding. Such richly embroidered clothes could only be worn by women of the royal or ‘sacred bone’ (seonggol) class in the Korean bone rank system used in the Silla period (57 BCE - 935 CE).

Pages 2 and 3 of the Berlin Decree, signed 21 November 1806 by Emperor Napoleon I that kicked off the Continental System embargo on British trade.

A number of Chain Home radar towers, used by Britain to detect enemy movements during the Second World War (1939-45), particularly as part of the Dowding System during the Battle of Britain of 1940. These towers were at Poling in Sussex...

French soldiers inspect goods in Leipzig in 1806, near the start of Napoleon's Continental System. By Gottfried Heinrich Geißler, 1824.

Throughout the study of the past, historians have relied on broad conceptual shortcuts to categorize time, societies, and developments. While these models help structure historical analysis and provide useful comparisons, they can oversimplify...

A photograph showing members of the British Royal Observer Corps and the equipment they used to measure the altitude and position of incoming enemy aircraft during the Second World War (1939-45). The observers were an important element of...

Ceramic traditional roof tiles from Korea. Not only did tiles have a functional and decorative role but they were also indicators of the inhabitants higher social status. (Hwangjeon-ri, Masan-myeon, Gurye-gun, Jeollanam-do)

Auxiliary Territorial Service (ATS) personnel operating a searchlight during the Second World War (1939-45). Searchlights, often with the aid of radar, could help identify enemy aircraft for anti-aircraft gunners to shoot.

Although it was published in 1995, Richard R. John's Spreading the News: The American Postal System from Franklin to Morse remains a must-read in the media history academia. This book practically shaped today's academic research in this genre...