The Jarlsberg advertisement series.
The history of this cheese can be traced back to the middle 1850s. Anders Larsen Bakke (1815--1899) was a farmer and entrepreneur and a pioneer in Norway's dairy industry. He produced cheese in the Våle village in what was then the county of Jarlsberg and Larviks Amt (now Vestfold), 80 km south of Oslo. The cheese shares similarities with Emmenthal, introduced to Vestfold by Swiss cheese makers during the 1830s. The cheese (and Bakke's accomplishments) was first noted in the annual county report of Jarlsberg and Larviks Amt in 1855. The Jarlsberg cheese known today is a result of a long period of research and development carried out the Dairy Institute at the Agricultural University of Norway. The cheese-making process was developed by Ola Martin Ystgaard, professor of the Agricultural University of Norway. Starting in 1956, Ystgaard and some of his students eventually came up with the recipe that is used today and is secret. Commercial production of cheese began in the 1960s. The largest producer of Jarlsberg today is the TINE BA factory in Elnesvågen near Molde in western Norway. TINE is one of the twelve agricultural cooperatives in Norway and the largest Norwegian dairy product cooperative. The corporation domestically offers the entire spectrum of dairy products. Jarlsberg accounts for 80% of TINE's total export.
Jarlsberg is produced in the United States on license at Alpine Cheese in Ohio, and by Dairygold in Ireland. In the United States, it is sold in 30,000 supermarkets. From Wikipedia