"As the tides of history have ebbed and flowed, different drinks have come to prominence in different times, places, and cultures, from villages to ancient Greek dining rooms or s. Each one became popular when it met a particular need or aligned with a historical trend; in some cases, it then went on to influence the course of history in unexpected ways. Just as archaeologists divide history into different periods based on the use of different materials—the stone age, the , the , and so on—it is also possible to divide world history into periods dominated by different drinks. Six beverages in particular—beer, wine, , coffee, tea, and —chart the flow of world history. Three contain , and three contain , but what they all have in common is that each one was the defining drink during a pivotal historical period, from antiquity to the present day."