[5] TTB was created in January 2003, when the Bureau of Alcohol, Tobacco and Firearms, or ATF, was extensively reorganized under the provisions of the Homeland Security Act of 2002.

[2] Much of the growth that Napa County experienced in the late nineteenth century is due to developments in infrastructure such as the telegraph and the railroad as well as cheap Chinese labor.

[2] At this time, Gustave Niebaum, a wealthy businessman, established Inglenook winery with the intention of improving the wine industry's image.

[2] Napa County experienced global exposure at the 1889 World's Fair in Paris where Inglenook wines won awards.

[2] As the turn of the 20th century approached, a series of setbacks commenced that devastated the Napa County wine industry for decades.

A phylloxera outbreak decimated the wine grape crop, and this was followed by Prohibition in 1918, which made the production and transportation of alcohol illegal in the United States.

[2][8] In 1933, when Prohibition was repealed, the United States was in the midst of the Great Depression, and as a result the Napa County wine industry did not fully recover until 1960's.

[9] The Napa County wine industry was once again in a period of expansion as new entrepreneurs with big visions such as Robert Mondavi in 1966 flocked to the valley; however, this time vintners and residents concerned about the population growth and shift towards urbanization in the region worked together to enact legislation making it more difficult to develop land in Napa.

[2][11] The Napa Valley is located east of Sonoma County under the backdrop of Mount Saint Helena, which is part of the Mayacamas Mountain Range.

[12][11] The concept of wine tourism is relatively new, and researchers have concluded that there are a number of factors that make Napa County an attractive destination for tourists.

[11] As of April, 2016, Napa County is home to approximately 70 hotels, resorts, inns, and bed and breakfast type establishments geared towards the tourism industry, with a total room count of 4,815.

[11] The Great Recession caused a number of proposed development to be put on hold, and now many experts are saying the hotel industry in Napa County is on the verge of another boom, with more than 2,000 new guestrooms at 18 locations either being planned or currently under construction.