Question: What colony along the lower reaches of the Delaware River in North America from 1638 to 1655, featured the fortification and settlement of Fort Nya Elfsborg?
Sentence (from "Fort Nya Elfsborg"): Built in 1643 and named after the Älvsborg Fortress off Gothenburg, Fort Nya Elfsborg was located on the New Jersey side of the Delaware River, between present day Salem and Alloway Creek.
Relevant evidence: No