The Tolstoy novel, Anna Karenina, describes Russian society in the 19th Century; and in the novel we read that they particularly appreciated two French wines of the period: Champagne and Chablis. The price of success, the word “Chablis” has today entered into the common language to describe in a general manner dry white wines from a wide range of countries. The name of Chablis has become a part of everyday life, to judge from the quantity of wines which copy it, from the Americas to Australia. True Chablis wines can only be produced in France, and only over a maximum area of 6,830 hectares. This district is the outcome of the delimitation carried out by the National Institute for Labels of Origin (Institut National des Appellations d’Origine -I.N.A.O.). But this is, in fact, the conclusion of a long drawn-out selection of lands suitable for the production of the best wines, carried on first by the monks and later continued by countless generations of wine growers. This vineyard is located over a group of sites formed at a very specific era in the history of the Earth, several million years ago. Geologists have given this soil the name of Kimmeridgian, a reference to the soils of the village of Kimmeridge in England : on both sites the same fossil oysters (ostrea virgula) can be found.