responsible serving of alcohol to guests

The invention of bread and beer has been argued to be responsible for humanity's ability to develop technology and build civilization.The earliest chemically confirmed barley beer to date was discovered at Godin Tepe in the central Zagros Mountains of Iran, where fragments of a jug, at least 5,000 years old was found to be coated with beerstone, a by-product of the brewing process.
Beer may have been known in Neolithic Europe as far back as 5,000 years ago, and was mainly brewed on a domestic scale.
Beer produced before the Industrial Revolution continued to be made and sold on a domestic scale, although by the 7th century AD beer was also being produced and sold by European monasteries. During the Industrial Revolution, the production of beer moved fromartisanal manufacture to industrial manufacture, and domestic manufacture ceased to be significant by the end of the 19th century.The development of hydrometers and thermometers changed brewing by allowing the brewer more control of the process, and greater knowledge of the results.