California grapes that were to be shipped to Denver, where they were made into wine. Though Winiarski still lived in California, this project would kick start the Colorado wine industry. In 1970, Winiarski and several investors bought a 44-acre prune orchard in the Napa Valley and replanted it to a vineyard. He removed the prune, cherry, and walnuts trees on the property and planted Cabernet Sauvignon and Merlot. In 1973 Winiarski built a winery near the vineyard and founded Stag's Leap Wine Cellars, and the next year, 1974, he introduced a reserve line, Cask 23. In 1976, Winiarski won the Judgement of Paris blind tasting for his 1973 Stag's Leap Wine Cellars Cabernet Sauvignon. The achievement brought worldwide recognition to California, Napa Valley, and Stag's Leap Wine Cellars. In 1989, Warren chaired the Napa Valley Vintners committee that spearheaded and obtained passage of the California state law, State Senate Bill No. 771 (the Conjunctive Labeling Law), which required any wine bottled after January 1, 1990, and labeled with an American Viticultural Area (AVA) located entirely within Napa Valley must also include Napa Valley on the label "in conjunction with the other AVA designation of the wine." This law helped build brand equity for the individual AVAs as well as the Napa Valley, ensuring the region always had two winners and no losers. The law strengthened Napa Valley's position as a recognized world-class wine region. In 2003, thirty winemaking alumni and the current winemaking team paid homage to Winiarski through the Hands of Time installation at Stag's Leap Wine Cellars. Each placed their hands into limestone aggregate to create a plaque. These plaques were mounted as a monument at the winery to remind those in the future of the opportunity to learn and go on. Those in attendance that day included John Kongsgaard, Bob Sessions, John Williams, Dick Ward, Rolando Herrera, Françoise Peschon, Paul Hobbs and Michael Silacci. Many of these winemakers had spent their formative years at Stag's Leap Wine Cellars with Winiarski. In 1996, Winiarski and his wife, Barbara, initiated The Smithsonian Institution National Museum of American History's American Food & Wine History Project. The project uses food and wine history as a lens for understanding American history by tracing the long and diverse history of wine in the United States. Winiarski created and taught a seminar at the Red, White and American symposium at the Smithsonian Institution on