Why a city of seven chambers shed its name to escape a nuclear shadow

Countries & Cities · Published 29 September 2026 Swipe more like this →

In short: Founded as a Russian fort near a mysterious monastery, Semey spent decades as the epicenter of Soviet atomic testing. Known formerly as Semipalatinsk, the city endured 456 nuclear explosions on its doorstep. Today, it is reclaiming its identity as a regional capital, balancing a complex history with a modern future.

Established in 1718, the city was originally named Semipalatinsk, meaning 'Seven-Chambered City,' after a nearby Buddhist monastery. Its location on the Irtysh River made it a vital trade hub between Central Asia and the Russian Empire. By the early 20th century, the construction of the Turkestan-Siberia Railway further cemented its role as a key transit point. Throughout its history, the city served as a center for the Kazakh intelligentsia and briefly functioned as the capital of the Alash Autonomy between 1917 and 1920.

The city's trajectory shifted dramatically in 1949 when the Soviet Union designated a site 180 kilometers to the west as its primary nuclear testing ground. Over the next four decades, the Semipalatinsk Test Site hosted 456 nuclear tests, including 116 atmospheric explosions. The proximity of these tests resulted in severe environmental and health consequences for local residents, including elevated rates of cancer and birth defects. The secret city of Kurchatov, named after the father of the Soviet atomic bomb, housed the scientists who conducted this research.

In 2007, the city council voted to rename the city Semey, explicitly citing the negative associations linked to its nuclear past. The transition has been marked by efforts to modernize and redefine the city's role. In 2022, Semey was designated the administrative center of the newly formed Abai Region. Today, the city is recognized as a university town with a significant scientific community, home to institutions like the Semey Medical University and museums dedicated to cultural figures such as Abay Qunanbayuli and F. M. Dostoevsky.

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