The United American Provinces

The United American Provinces were formed as a merger of the colonies of New Netherland and New Sweden and the native Iroquois League, and as a continuation of the Dutch republican government of the United Provinces after it was replaced by a monarchy in Europe. In the following decades it became a powerhouse in industry and trade and also benefited from its long-standing alliance with Acadia. Today the UAP is one of the most populous and prosperous nations in North America (disproportionately to its geographic size), as well as one of the most diverse - in addition to the founding populations of Dutch, Swedish, and Iroquois (the UAP is of course officially trilingual), as a beacon for persecuted groups and other immigrants it has become home to large communities of Germans, Afro-Virginians, English Quakers, Sephardic Jews, Javans, Caribbean and South American creoles, and more - although while tolerance and multiculturalism are celebrated in flourishing cosmopolitan cities like Nieuw Amsterdam (financial center of North America), Bronstad (seat of the North American Community), and Kristina (continuing to assert itself as a hub of Swedish-language culture), a nationalist backlash is growing in the struggling interior regions, hit hard by deindustrialization and the decline of coal.

Apologies for my bad Dutch, worse Swedish, and non-existent Iroquois.