The discovery of five Viking longships in the Roskilde Fjord in 1962 provided a rare, tangible window into the realities of the Viking Age. These vessels, which were intentionally sunk in the 11th century to serve as a defensive barrier against naval attacks, offer a unique perspective on the maritime power and strategic ingenuity of the era. By analyzing these ships, researchers have been able to verify and expand upon the historical accounts found in the sagas, revealing the true scale and sophistication of the dragon ships that once dominated the northern seas.