Sweden’s leaders and merchants created the Swedish South Company (later linked with the New Sweden effort) to support long-distance trade and colonization ideas. This mattered because it provided an early business and legal framework for later plans in North America, even though Sweden’s European wars slowed the project for years.
In 1637, Swedish leaders and investors reorganized efforts into what became known as the New Sweden Company to establish a colony on the Delaware River and trade for valuable goods like furs and tobacco. The reorganization was important because it set a clear goal, raised funding, and prepared a first expedition despite Dutch claims in the region.
Ships for the first New Sweden expedition left Gothenburg in late 1637 under the leadership of Peter Minuit, a former New Netherland director. This voyage mattered because it brought the people and supplies needed to create a Swedish foothold in a river valley already claimed by the Dutch.
On March 29, 1638, Minuit’s expedition arrived in the Delaware Valley and began Fort Christina near today’s Wilmington, Delaware. The fort became the colony’s main base, supporting trade (especially in furs) and marking the start of New Sweden as a lasting settlement on the Delaware River.
Soon after establishing the colony, Peter Minuit was lost at sea in June 1638 during a Caribbean hurricane while on a trading voyage. His death forced New Sweden to rely on other officers and later governors to keep the settlement supplied and politically stable.
A second major expedition reached New Sweden in April 1640, bringing Governor Peter Hollander Ridder and Lutheran minister Reorus Torkillus. This was a turning point because it strengthened civil administration and established organized religious life, helping the small colony endure beyond its first founders.
In February 1643, Johan Björnsson Printz arrived to govern New Sweden and began expanding the colony’s defensive and trading network. He ordered new fortifications and set up a major base at New Gothenburg on Tinicum Island, aiming to control river traffic and strengthen relations for trade.
In 1651, the Dutch West India Company built Fort Casimir on the west side of the Delaware River, a few miles south of Fort Christina. This was significant because it escalated the struggle for control of the Delaware River’s trade and shipping lanes, tightening pressure on New Sweden.
On May 31, 1654, New Sweden’s governor Johan Risingh captured Fort Casimir from the Dutch and renamed it Fort Trinity. The capture briefly gave the Swedes stronger control over river access, but it also triggered a major Dutch decision to remove the Swedish colony by force.
In late summer 1655, Director-General Peter Stuyvesant sailed from New Amsterdam with a military force to retake the Delaware River settlements. This campaign mattered because it shifted the conflict from local raids and fort-building into a full conquest aimed at ending Swedish rule.
On September 11, 1655, Dutch forces retook Fort Trinity (formerly Fort Casimir) and renamed the settlement New Amstel. This was a decisive step because it cut off New Sweden’s southern defenses and set the stage for the fall of Fort Christina.
On September 15, 1655, Fort Christina surrendered to Stuyvesant’s forces, ending New Sweden as a Swedish-governed colony. The Dutch incorporated the settlements into New Netherland, though many Swedish and Finnish settlers remained and continued local community life under new political control.
New Sweden: Swedish Colonization and Expeditions in the Delaware Valley (1637–1655)