Ladoga Canal major canals constructed in Russia. It was one of the projects of Peter the Great, who ordered its construction in 1718. Rapid economic development in Russia required a significant expansion of routes, especially waterways. One part of the Vyshny Volochek waterway (1709) linking the Volga river to the Baltic Sea, passed through Lake Ladoga. The Ladoga section of the route was one of the most difficult and dangerous because the lake is prone to winds and storms which destroyed hundreds of cargo ships. Peter the Great decided to avoid the navigation in the huge and stormy lake by building a
Staraya Ladoga his successor Oleg. The Heimskringla and other Norse sources mention that in the late 990s Eric Haakonsson of Norway raided the coast and set the town ablaze. Ladoga was the most important trading center in Eastern Europe from about 800 to 900 CE, and it is estimated that between 90% to 95% of all Arab dirhams found in Sweden passed through Ladoga. Ladoga's next mention in chronicles is dated 1019, when Ingigerd of Sweden married Yaroslav of Novgorod. Under the terms of their marriage settlement, Yaroslav ceded Ladoga to his wife, who appointed her father's cousin, the Swedish earl Ragnvald