Velsk is a town and the administrative center of Velsky District in Arkhangelsk Oblast, Russia, located on the left bank of the Vel River at its confluence with the Vaga River, 545km south of Arkhangelsk, the administrative center of the oblast. Population:HistoryFirst attested in 1137, Velsk regularly suffered from inundations before it was moved to a higher spot in the 16th century. It was known as a pogost before 1555, as a posad between 1555 and 1780, whereupon it was incorporated as a town of Vologda Viceroyalty. Velsk developed as a merchant town, having profited from its location on the Vaga and late on the road connecting Moscow and Arkhangelsk (which in the 17th century was the only major trade harbor in European Russia). Trade fairs were held in Velsk; the most important one was the St. Athanasius Trade Fair.In 1796, Velsky Uyezd was transferred to Vologda Governorate and remained there until 1929, when several governorates were merged into Northern Krai. On July 15, 1929, the uyezds were abolished and Velsk became the administrative center of Velsky District, a part of Nyandoma Okrug of Northern Krai. In 1936, the krai was transformed into Northern Oblast and in 1937, Northern Oblast was split into Arkhangelsk Oblast and Vologda Oblast.