The earliest forerunners of the OIV are the international conferences held as a reaction to the 19th century
phylloxera epidemic, with the five-nation
Montpellier Congress held between 26 and 30 October 1874 being the foremost among these. The idea of an international organisation came up several times during the coming decades, and finally, on 29 November 1924, eight nations signed an agreement concerned with the creation of an International Wine Office (
Office international du vin, OIV) in Paris. After that the agreement went back to nations for
ratification. The first working session was held at
Salon de l’Horloge on 3 December 1927. On 4 September 1958, the organisation's name was changed to the International Vine and Wine Office (
Office International de la Vigne et du Vin). The current International Organisation of Vine and Wine was established following a 35-nation agreement on 3 April 2001, and replaced the International Vine and Wine Office. This agreement went into effect on 1 January 2004. == Member states ==