Decade ("60s" or "sixties"), although this may leave it uncertain which century is meant. These references are frequently used to encapsulate popular culture or other widespread phenomena that dominated such a decade, as in "The Great Depression of the 1930s" or "The Roaring Twenties". However, the Gregorian calendar begins with the year 1. (There is no year "zero", and the year before AD 1 is 1 BC with nothing in between.) Therefore, its "first" decade is from AD 1 to AD 10, the "second" decade from AD 11 to AD 20, and so on. So, although "the 1960s" comprises the years
Roaring Twenties of the decade, prosperity was widespread, with the second half of the decade known, especially in Germany, as the "Golden Twenties". The spirit of the Roaring Twenties was marked by a general feeling of novelty associated with modernity and a break with tradition. Everything seemed to be feasible through modern technology. New technologies, especially automobiles, moving pictures, and radio, brought "modernity" to a large part of the population. Formal decorative frills were shed in favor of practicality in both daily life and architecture. At the same time, jazz and dancing rose in popularity, in opposition to the mood of World