Dutch East India Company, sailed the Half Moon through the Narrows into Upper New York Bay. Like Christopher Columbus, Hudson was looking for a westerly passage to Asia. He never found one, but he did take note of the abundant beaver population. Beaver pelts were in fashion in Europe, fueling a lucrative business. Hudson's report on the regional beaver population served as the impetus for the founding of Dutch trading colonies in the New World. The beaver's importance in New York's history is reflected by its use on the city's official seal. Dutch settlement The first Dutch fur trading posts and settlements were in 1614 near present-day Albany, New York, the same year that New Netherland first appeared on maps. Only in May 1624, the Dutch West India Company landed a number of families at Noten Eylant (today's Governors Island) off the southern tip of Manhattan at the mouth of the North River (today's Hudson River). Soon thereafter, most likely in 1626, construction of Fort Amsterdam began. Later, the Dutch West Indies Company imported African slaves to serve as laborers; they helped to build the wall that defended the town against English and Indian attacks. Early directors included Willem Verhulst and Peter Minuit. Willem Kieft became director in 1638 but five years later was embroiled in Kieft's War against the Native Americans. The Pavonia Massacre, across the Hudson River in present-day Jersey City, resulted in the death of 80 natives in February 1643. Following the massacre, Algonquian tribes joined forces and nearly defeated the Dutch. Holland sent additional forces to the aid of Kieft, leading to the overwhelming defeat of the Native Americans and a peace treaty on August 29, 1645. On May 27, 1647, Peter Stuyvesant was inaugurated as director general upon his arrival and ruled as a member of the Dutch Reformed Church. The colony was granted self-government in 1652, and New Amsterdam was incorporated as a city on February 2, 1653. The first mayors (burgemeesters) of New Amsterdam, Arent van Hattem and Martin Cregier, were appointed in that year. By the early 1660s, the population consisted of approximately 1500 Europeans, only about half of whom were Dutch, and 375 Africans, 300 of whom were slaves. A few of the original Dutch place names have been retained, most notably Flushing (after the Dutch town of Vlissingen), Harlem (after Haarlem), and Brooklyn (after Breukelen). Few buildings, however, remain from