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
1900s (decade) 1900s (decade) The 1900s (pronounced "nineteen-hundreds") was a decade of the Gregorian calendar that began on January 1, 1900, and ended on December 31, 1909. The term "nineteen-hundreds" can also mean the entire century 1900–1999 years beginning with a 19 (see 1900s). The Edwardian era (1901–1910) covers a similar span of time. There are several main varieties of how individual years of the decade are pronounced in American English. Using 1906 as an example, they are "nineteen-oh-six", "nineteen-six", and "nineteen-aught-six". Which variety is most prominent depends somewhat on global region and generation. In American English, "nineteen-oh-six" is the most common;