Arzamas (ərzəmäs´), city (1990 pop. 110,000), E European Russia, on the Tyosha River. A rail junction, it has food-processing plants and industries that produce farm implements. An ancient Mordovian settlement, Arzamas became a fortress after Czar Ivan IV captured it from the Kazan Tatars in 1552.
"Arzamas." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (February 23, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/arzamas
"Arzamas." The Columbia Encyclopedia, 6th ed.. . Retrieved February 23, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/arzamas