Norsemen would later set sail from Greenland and Iceland with Leif Erikson. They were the first known Europeans to reach North America. They did so nearly 500 years before Columbus reached the Caribbean islands. Inuit peoples arrived in Greenland in the 13th century. Though under continuous influence of Norway and Norwegians, Greenland was not formally under the Norwegian crown until 1261. Their colonies declined after the Black Death in the late 1400s. Denmark–Norway, joined in alliance at the time, reclaimed sovereignty over the island in the 17th century. Greenland became Danish in 1814.