Norwegian Americans (, ) are Americans with ancestral roots in Norway. Norwegian immigrants went to the United States primarily in the latter half of the 19th century and the first few decades of the 20th century. There are more than 4.5 million Norwegian Americans, according to the 2021 U.S. census,; most live in the Upper Midwest and on the West Coast of the United States. Immigration Viking-era exploration Norsemen from Greenland and Iceland were the first Europeans to reach North America. Leif Erikson reached North America via Norse settlements in Greenland around the year 1000. Norse settlers from Greenland founded the settlement of L'Anse aux Meadows and Point Rosee in Vinland, in what is now Newfoundland, Canada. These settlers failed to establish a permanent settlement because of conflicts with indigenous people and within the Norse community. Colonial settlement The Netherlands, and especially the cities of Amsterdam and Hoorn, had strong commercial ties with the coastal lumber trade of Norway during the 17th century and many Norwegians immigrated to Amsterdam. Some of them settled in Dutch colonies, although never in large numbers. There were also Norwegian settlers in Pennsylvania in the first half of the 18th century, upstate New York in the latter half of the same century, and in New England during both halves. During the colonial period, Norwegian immigrants often joined the Dutch seeking opportunities for trade and a new life in America. The Dutch often took Norwegians with them to the New World for their sailing expertise. There was a Norwegian presence in New Amsterdam in the early part of the 17th century. Hans Hansen Bergen, a native of Bergen, Norway, was one of the earliest settlers of the Dutch colony of New Amsterdam, having immigrated in 1633. Another early Norwegian settler, Albert Andriessen Bradt, arrived in New Amsterdam in 1637. Approximately 60 people had settled in the Manhattan area before the region was taken over by the British Empire in 1664. The total number of Norwegians that settled in New Netherland is not known. In the period that followed, many of the original Norwegian settlers in the area remained, including the family of Pieter Van Brugh, a colonial mayor of Albany, who was the grandson of early Norwegian immigrants. 19th century Many immigrants during the early 1800s sought religious freedom. From the mid-1800s however, the driving forces behind Norwegian immigration to the United States were agricultural disasters