the present Alexander Hamilton U.S. Custom House on Bowling Green. The fort was designed mainly to protect the company's trading operations further upriver from attack by other European powers. Within a year, a small settlement, called New Amsterdam had grown around the fort, with a population that included mostly the garrison of company troops, as well as a contingent of Walloon, French and Flemish Huguenot families who were brought in primarily to farm the nearby land of lower Manhattan and supply the company operations with food. Sarah Rapelje (b.1625) was the first European born in the future New York City. Later in 1626, Peter Minuit purchased Manhattan Island and Staten Island from native people in exchange for trade goods. The Dutch took heavy advantage of the Indigenous reliance on wampum as a trading medium by exchanging cheap European-made metal tools for beaver pelts. By using such tools, the Indigenous greatly increased the rate of production of wampum, debasing its value for trade. Lenape men abandoned hunting and fishing for food in favor of beaver trapping. Moreover, the Dutch began manufacturing their own wampum with superior tools in order to further dominate the trading network among themselves and the Indigenous (a practice undertaken by the settlers in New England as well). As a result of this increase, beavers were largely trapped out in the Five Boroughs within two decades, leaving the Lenape largely dependent on the Dutch. As a result, the Indigenous population declined drastically throughout the 17th century through a combination of disease, starvation, and outward migration. As the beaver trade shifted to Upstate New York, New Amsterdam became an increasingly important trading hub for the coast of North America. Since New Netherland was a trading operation and not viewed as colonization enterprise for transplanting Dutch culture, the directors of New Netherland were largely unconcerned with the ethnic and racial balance of the community. The economic activity brought in a wide variety of ethnic groups to the fledgling city during the 17th century, including Spanish, Jews, and Africans, some of them as slaves. The Dutch origins can still be seen in many names in New York City, such as Coney Island (from "Konijnen Eiland" – Dutch for "Rabbit Island"), Bowery from bouwerij (modern Dutch boerderij = "farm"), Brooklyn (from Breukelen), Harlem from Haarlem (formalized in 1658 as Nieuw Haarlem), Greenwich Village (from Greenwijck, meaning "pine wood quarter"), Flushing (from Vlissingen)