A medieval sword, possibly from the Vikings, has been found at the bottom of the Vistula River in Poland. It is one of eight weapons of its kind discovered in the country, CBS News reported.

The sword was located near the city of Toruń, a protected world heritage site. It was discovered during dredging at the port at Włocławek, about 30 mi. from Toruń. 

The sword dates back more than 1,000 years to the 10th century A.D., which is the period of the earliest known dynasty that settled in that area. It is speculated that the sword may have borne witness to the formation of Polish statehood.

Learn more here.