A 15th-century shipwreck off the coast of Sweden may be Scandinavia's oldest shipwreck built in the innovative "carvel" style — a design that gave it the strength to carry heavy cannons, archaeologists say.
The wreck at Landfjärden, south of Stockholm, is one of five in the area that have been known since the 1800s. They were commonly thought to have been from ships dating to the Viking Age (A.D. 793 to 1066).
