List of Generations from Western world

1. The Lost Generation, primarily known as the Generation of 1914 in Europe, is a term originating with Gertrude Stein to describe those who fought in World War I. The members of the lost generation were typically born between 1883 to 1900.
2. The Greatest Generation, also known as the G.I. Generation, is the generation that includes the veterans who fought in World War II. They were born from around 1901 through 1924, coming of age during the Great Depression. Journalist Tom Brokaw dubbed this the Greatest Generation in a book of the same name.
3. The Silent Generation born 1925 through 1945, is the generation that includes those who were too young to join the service during World War II. Many had fathers who served in World War I. Generally recognized as the children of the Great Depression, this event during their formative years had a profound impact on them.
4. The Baby Boom Generation is the generation that was born following World War II, from 1946 up to 1964, a time that was marked by an increase in birth rates. The baby boom has been described variously as a "shockwave" and as "the pig in the python." By the sheer force of its numbers, the boomers were a demographic bulge which remodeled society as it passed through it. In general, baby boomers are associated with a rejection or redefinition of traditional values; however, many commentators have disputed the extent of that rejection, noting the widespread continuity of values with older and younger generations. In Europe and North America boomers are widely associated with privilege, as many grew up in a time of affluence. One of the features of Boomers was that they tended to think of themselves as a special generation, very different from those that had come before them. In the 1960s, as the relatively large numbers of young people became teenagers and young adults, they, and those around them, created a very specific rhetoric around their cohort, and the change they were bringing about.
5. Generation X (also known as the 13th Generation and the Baby Busters) is the generation generally defined as those born after the baby boom ended. The term generally includes people born during all or part of the 1960s: According to Strauss-Howe generational theory, 1961 is the starting point, though other sources, including the U.S. Census Bureau, consider it to have started in the mid-1960s. It ends in late 1970s to early 1980s, usually not later than 1981 or 1982. The term has also been used in different times and places for a number of different subcultures or countercultures since the 1950s.
6. Generation Y, the Millennial Generation (or Millennials), Generation Next, Net Generation, Echo Boomers,describes the generation following Generation X. As there are no precise dates for when the Millennial generation starts and ends, commentators have used birth dates ranging somewhere from the mid-1970s to the early 2000s (decade). Experts differ on the start date of Generation Y. William Strauss and Neil Howe use the start year as 1982, and end years around the turn of the millennium, while others use start years that are earlier or later than 1982, and end years in the mid-1990s. One segment of this age-group has often been called the “eighties babies” generation, in reference to the fact that they were born between January 1, 1980 and December 31, 1989.
7. Generation Z, also known as Generation I, or Internet Generation, and Generation Text, and the "Digital Natives" by Marc Prensky and is the following generation. The earliest birth is generally dated in the early 1990s.
8. Generation AO, the Always-On Generation (or Gen AO), was first used by Elon University professor Janna Quitney Anderson in 2012 to describe people born between the early 2000s and the 2020s whose lives have been influenced since their early childhood by connectivity afforded by easy access to people and the world’s knowledge through the Internet. A survey of 1,000 experts she and Lee Rainie conducted for the Pew Research Center Internet & American Life Project found that the generation brought up from childhood with a continuous connection to each other and to information will be nimble, quick-acting multitaskers who count on the Internet as their external brain; the experts also predicted Gen AO will exhibit a thirst for instant gratification and quick fixes, a loss of patience and a lack of deep-thinking ability.--wikipedia