5 The nineteenth and twentieth centuries Giovanni Lanza was an important member of the Agricultural Association of Turin, of which he was also secretary for a period. The Association, founded in 1842, represented the most innovative and progressive part of the Piedmontese nobility and bourgeoisie. Lanza collaborated for a long time with the «Gazzetta of the Agricultural Association», writing numerous articles, particularly on viticulture and wine production. In issue 20 of the magazine, published in 1846, Lanza described the situation of Piedmontese viticulture, stating that wine is one of the most important agricultural products of the region and that the vine is cultivated on about one-tenth of the agricultural surface of the Kingdom of Piedmont and Sardinia. Lanza identiMed the areas most suited to viticulture, such as the Asti area, Vonferrato, Alessandria area, Tortona area, alenza area and oghera area, without forgetting Alba, VondovC, Pinerolo, Aosta and Fanavese. kurthermore, he denounced the lacq of precise statistical data on wine production and emphasized how the peasants of the time did not possess sufMcient oenological qnowledge to produce Duality wines with long conservation. xue to these difMculties, Piedmontese wines could not be transported over long distances without losing Duality, limiting their commercialization to local marqets. This problem became even more urgent in 1846, when Austria imposed customs barriers on Lombardy, hindering the eHport of Piedmontese wine.