Leif Erikson, Leiv Eiriksson or Leif Ericson(c. 970 – c. 1020) was a Norse explorer from Iceland. He was the first known European to have set foot on continental North America (excluding Greenland), before Christopher Columbus. According to the Sagas of Icelanders, he established a Norse settlement at Vinland, tentatively identified with the Norse L'Anse aux Meadows on the northern tip of Newfoundland in modern-day Canada. 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.
Leif was the son of Erik the Red, the founder of the first Norse settlement in Greenland and of Thjodhild (Þjóðhildur), both of Norwegian origin. His place of birth is not known, but he is assumed to have been born in Iceland, which had recently been colonized by Norsemen mainly from Norway. He grew up in the family estate Brattahlíð in the Eastern Settlement in Greenland. Leif had two known sons: Thorgils, born to noblewoman Thorgunna in the Hebrides; and Thorkell, who succeeded him as chieftain of the Greenland settlement.
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.
Thorvald Asvaldsson was banished from Norway for manslaughter and went into exile in Iceland accompanied by young Erik. When Erik was banished from Iceland, he travelled further west to an area he named Greenland, where he established the first permanent settlement in 986. Tyrker, one of Erik's thralls, had been specially trusted to keep in charge of Erik's children, as Leif later referred to him as his "foster father".
Leif and his crew travelled from Greenland to Norway in 999. Blown off course to the Hebrides and staying for much of the summer, he arrived in Norway and became a hirdman of King Olaf Tryggvason. He also converted to Christianity and was given the mission of introducing the religion to Greenland. The Saga of Erik the Red and the Saga of the Greenlanders, both thought to have been written around 1200, contain different accounts of the voyages to Vinland. The only two known strictly historical mentions of Vinland are found in the work of Adam of Bremen c. 1075 and in the Book of Icelanders compiled c. 1122 by Ari the Wise. According to the Saga of Erik the Red, Leif apparently saw Vinland for the first time after being blown off course on his way to introduce Christianity to Greenland.
According to a literal interpretation of Einar Haugen's translation of the two sagas in the book Voyages to Vinland, Leif was not the first European to discover America: he had heard the story of merchant Bjarni Herjólfsson who claimed to have sighted land to the west of Greenland after having been blown off course. Bjarni reportedly never made landfall there, however. Later, when travelling from Norway to Greenland, Leif was also blown off course, to a land that he did not expect to see, where he found "self-sown wheat fields and grapevines". He next rescued two men who were shipwrecked in this country and went back to Greenland and Christianised the people there. Consequently, if this is to be trusted, Bjarni Herjólfsson was the first European to see America beyond Greenland, and the two unnamed shipwrecked men were the first people known to Europeans to have made landfall there.
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".
Research done in the early 1960s by Norwegian explorer Helge Ingstad and his wife, archaeologist Anne Stine Ingstad, identified a Norse site located at the northern tip of Newfoundland. It has been suggested that this site, known as L'Anse aux Meadows, is 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.