In around the year 1000 the Icelandic Viking Leif Eriksson sailed southward from Greenland and bumped into the coast of North America. According to the Saga of the Greenlanders, he found a land of rolling hills, abundant salmon and game, and many wild vines with gigantic berries, which is why he dubbed it "Vinland", the land of wine. Vines were to be found growing wild all over North America so the first settlers were able to make wine from them.
However, these wines had an unpleasant overtone referred to as foxy. Many attempts to plant European vines on the west coast ended in failure as the European vines were not resistant to the phylloxera found everywhere in all soils, the extremes of the climate and various diseases. Later attempts were made to grow hybrids (such as crosses between the American – resistant – labrusca variety and European vinifera vines) like Catawba and Concord, but the foxiness persisted. Towards the end of the 18th century, European immigrants in California grafted the first scion onto American rootstock and paved the way for a successful winemaking future. Around the turn of the century, winemaking expanded rapidly, especially in California. Most winegrowers were forced to give up during the prohibition years (1919–1933), before the industry saw a revival of its fortunes again in the 1930s. The USA experienced a veritable wine boom in the 1960s when lots of enthusiastic boutique wineries started to focus on producing small quantities of premium wines. This trend continued in the 1970s and 1980s.