Yelets (Russian: Елец) is a town in Lipetsk Oblast, Russia, on the Sosna River, which is a tributary of the Don River. Its population is approximately 117,000 people. It is mentioned in historical documents as far back as 1146. Timur conquered it in 1395, and the Mongols sacked it in 1414. The town's chief landmark is the vast Ascension Cathedral, built over the years 1845-1889 to a Neo-Byzantine design by Konstantin Thon. Handmade lace has been a notable product of the city since at least the 19th century; other important industries are grain milling and the manufacture of machinery. Lipetsk Oblast (Russian: Ли́пецкая о́бласть) is a federal subject of Russia (an oblast). ... There are at several rivers named Don: Don River, Russia Don River, Toronto River Don, England River Don, Aberdeenshire This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Events Saint Bernard of Clairvaux preaches the Second Crusade at Vezelay, Burgundy First written mention of Bryansk. ... Reconstruction of Timur from exhumation of his tomb. ... Events End of reign of Hungary by Capet-Anjou family. ... The Mongols are an ethnic group that originated in what is now Mongolia, Russia, and China, particularly Inner Mongolia. ... Events Council of Constance begins. ... 1845 was a common year starting on Wednesday (see link for calendar). ... 1889 was a common year starting on Tuesday (see link for calendar). ... Annunciation church in St. ... White lace is often used in collars and other fabric borders. ... Alternative meaning: Nineteenth Century (periodical) (18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801-1900 in the sense of the Gregorian calendar. ...