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a city in Kharkov Oblast, Ukrainian SSR, on the Sever-skii Donets River. Railroad station on the Kharkov-Krasnyi Liman line. Population, 51,000 (1971). Diesel locomotives are repaired in Izium. It is also the site of a brickworks, a brewery, a furniture factory, and plants for the production of optical instruments and building materials. There is a medical school and a museum of local lore.
Izium was first mentioned in 1571 as Izium Sakma. In 1682 it became known as the Izium Entrenchment. From 1688 to 1765 it was called the Izium Sloboda Regiment. In 1765, Izium became a provincial city. With the establishment of a vicege-rency, it became the principal city of its district.