The Sagas do not give the exact date of Leif Erikson's landfall in America, they only state that it was in the fall of the year. At the suggestion of Christian A. Hoen, Edgerton, Wis., 9 October was settled upon, as that already was a historic date for Norwegians in America, the ship Restaurationen coming from Stavanger, arrived in New York Harbor on 9 October 1825 with its first organized party of Norwegian immigrants.
Stories of Leif's journey to North America had a profound effect on the identity and self-perception of later Nordic Americans and Nordic immigrants to the United States. The first statue of Leif (by Anne Whitney) was erected in Boston in 1887 at the instigation of Eben Norton Horsford, who was among those who believed that Vinland could have been located on the Charles River or Cape Cod; not long after, another casting of Whitney's statue was erected in Milwaukee. A statue was also erected in Chicago in 1901, having been originally commissioned for the 1893 World's Columbian Exposition to coincide with the arrival of the reconstructed Viking ship from Bergen, Norway. Another work of art made for the 1893 World's Columbian Exposition, the painting Leiv Eiriksson oppdager Amerika by Christian Krohg, was in the possession of a Leif Erikson Memorial Association in Chicago before being given back to the National Gallery of Norway in 1900.
For the centenary of the first official immigration of Norwegians to America, President Calvin Coolidge stated at the 1925 Minnesota State Fair, to a crowd of 100,000 people, that Leif had indeed been the first European to discover America. Further statues of him were erected at the Minnesota State Capitol in St. Paul in 1949, near Lake Superior in Duluth in 1956, and in downtown Seattle.
Leif is the main character in two novels called Vinland the Good, and the 1928 film The Viking.
Research done in the early 1960s by Norwegian Explorer Helge Ingstad and his wife, archaeologist Anne Stine Ingstad, identified a Norse settlement located at the northern tip of Newfoundland. It has been suggested that this site, known as L'Anse aux Meadows, is Leif's settlement of Leifsbúðir. The Ingstads demonstrated that Norsemen had reached America about 500 years before Christopher Columbus. Later archaeological evidence suggests that Vinland may have been the areas around the Gulf of St. Lawrence and that the L'Anse aux Meadows site was a ship repair station and waypoint for voyages there. That does not necessarily contradict the identification of L'Anse aux Meadows with Leifsbúðir since the two sagas appear to describe Vinland as a wider region which included several settlements. The Saga of Erik the Red mentions two other settlements in Vinland: a settlement called Straumfjǫrðr, which lay beyond Kjalarnes promontory and the Wonderstrands, and one called Hóp, which was located even farther south.
Leif then approached Bjarni, purchased his ship, gathered a crew of thirty-five men, and mounted an expedition towards the land Bjarni had described. His father Erik was set to join him but dropped out after he fell from his horse on his way to set sail, an incident he interpreted as a bad omen. Leif followed Bjarni's route in reverse and landed first in a rocky and desolate place he named Helluland (Flat-Rock Land; possibly Baffin Island). After venturing further by sea, he landed the second time in a forested place he named Markland (Forest Land; possibly Labrador). Finally, after two more days at sea, he landed in a verdant area with a mild climate and plentiful supplies of salmon. As winter approached, he decided to encamp there and broke his party into two groups – one to remain at camp and the other to explore the country. During one of these explorations, Tyrker discovered that the land was full of vines and grapes. Leif therefore named the land Vinland. There, he and his crew built a small settlement, which was called Leifsbudir (Leif's Booths) by later visitors from Greenland. After having wintered over in Vinland, Leif returned to Greenland in the spring with a cargo of grapes and timber. On the return voyage, he rescued an Icelandic castaway and his crew, earning him the nickname "Leif the Lucky".
Leif was the son of Erik the Red and his wife Thjodhild, and the grandson of Thorvaldr Ásvaldsson, and distant relative of Naddodd, who discovered Iceland. He was a Viking in the early days. His year of birth is most often given as c. 970 or c. 980. Though Leif's birthplace is not accounted for in the sagas, it is likely he was born in Iceland, where his parents met—probably somewhere on the edge of Breiðafjörður, and possibly at the farm Haukadal where Thjóðhild's family is said to have been based. Leif had two brothers, whose names were Thorsteinn and Thorvaldr, and a sister, Freydís.