Generation Years Chart | 20th to 21st Century Generations

The generation years chart and timeline describe the seven recent demographic cohorts stretching from way back in the 20th century.

Updated November 2, 2022
old and young generations

The generation years chart and timeline describe the 20th and 21st-century generations, based on birth years and demographic profiles. The timeline begins with the Greatest Generation in the 20th century, and ends with Generation Alpha in the 21st century.

The generations are categorized in collective birth-years that range between 13 and 23 years. To illustrate, the age bracket for the Greatest Generation spans 23 years (1901 to 1924), and 15 years (2010 and 2024) for Generation Alpha.

While age is an important yardstick in classifying these demographic cohorts, additional factors explain the similarities and differences in their characters and leaning in life.

In particular, the cohorts share unique characteristics and experiences in parenting, cultural trends, religious beliefs, political viewpoints, and social/economic well-being.

These ideals and values are shaped by existing trends in politics, the economy, wars, globalization, and advancements in technology. Technology only became a factor of reference, starting with the Millennial generation.

NOTE: The United States, Western Europe, and the rest of the developed world have documented demographic cohorts for many decades. The developing world only began collecting its data following the reach of technology and globalization.

Generation Years Chart

The following chart shows the generation names and corresponding birth years.:

generation years

Generations Years Timeline

This section describes the 7 generation cohorts, their birth years, and characteristics:


Note that the age brackets mentioned below may not necessarily have universal cut-off dates. Different countries and sources will quote varying generational timelines for scholarly and other reasons. The differences are however not big enough to alter the structure of the cohorts.

Also true, the characteristics of the cohorts are not entirely universal. This is explained through unique traits and values in select families and communities that may overlap for generations. Still, many things change from generation to generation, and they form the basis of this article.

1. The Greatest Generation: (1901 – 1924)

The Greatest Generation, also known as the G.I. Generation, the WWII Generation, and the Federation Generation in Australia, is the first cohort in our list, born between 1901 and 1924.

This generation was considered GREAT because it showed remarkable determination and resilience during WW1, WW2, and the Great Depression.

The men and women of this generation had the passion and willingness to fight for their country during the wars, because they believed it was the right thing to do. They also believed in themselves and stayed calm during the tough years of the depression.

The iconic journalist, Tom Brokaw, coined the name for this cohort, a title that became popular after he published a book he named The Greatest Generation.

In the book, he credits the cohort for staying vigilant at a time when the world was going crazy and facing extreme challenges. By all means, the men and women at the time gave true meaning to the words courage, sacrifice, and honor.

Out of the many, he lauded individuals such as Charles Van Gorder (a medical doctor), Senator Daniel InouyeMartha Settle Putney (a black member of Women’s Army Corps – WAC), and George H. W. Bush (pilot), as part of the many people who served their country with honor and courage.

Tom Brokaw lauded the following traits in the cohort:

  • Integrity
  • Humility
  • Work ethics
  • Financial ethics
  • A big sense of responsibility

Ronald Reagan (1911), John F Kennedy (1917), and Jimmy Carter (1924) are three other famous American personalities born during the Greatest Generation years.

2. The Silent Generation: (1925 – 1945)

The Silent Generation – also called the Traditionalists – was a cohort born between 1925 and 1945, just after WWI and during WWII and the Great Depression. The age bracket for this generation spanned 20 years.

The men and women of the Silent Generation said very little and worked hard to get by. This probably contributed to their civic approach to work & lifestyle.

A lot of things about this generation was attributed to the challenges and economic fragility created by the two world wars, and the firm parenting style they went through.

The name ‘Silent Generation‘ was coined by Time Magazine in a 1951 article titled The Younger Generation. Time slammed this group for lacking ambition and drive.

It was branded unimaginative, cautious, and withdrawn – perhaps a little too harsh. The Great Depression, which lasted from 1929 to 1939, and the Dust Bowl, which devastated farmlands in the 30s, perhaps contributed to their conditions.

In scathing words, the article notes,

The most startling fact about the younger generation is its silence. With some rare exceptions, youth is nowhere near the rostrum. By comparison with the Flaming Youth of their fathers & mothers, today’s younger generation is a still, small flame. It does not issue manifestoes, make speeches or carry posters.


To be fair to the Silent Generation, it was caught between two influential generations: the Greatest and the Baby Boomer generations, and raised during periods of economic madness!

Having grown up as children of fighters (Greatest Generation) during the world wars, they were nurtured to be seen rather than heard as the wars raged on.

The Baby Boomer generation, which succeeded them, lived through a fairy tale lifestyle because of their hard work.

To top it all, the Boomers took over the world as the Silent Generation looked on.

In the US alone, the Silent Generation has had to witness the Boomers monopolize the presidency for decades. While they have only one to their name – Joe Bidden, Boomer presidents include George W Bush, Bill Clinton, Barack Obama, and Donald Trump.

General traits of the Silent Generation:

  • Loyal
  • Determined
  • Respectful
  • Thrifty

Warren Buffet (1930), Joe Bidden (1942), Malcolm X (1925), Marilyn Monroe (1926), Harry Belafonte (1927), and Mohammed Ali (1941), are some famous American personalities born during these generation years. These lived to show the world they were not necessarily silent!

3. The Baby Boomer Generation: (1946 – 1964)

The Baby Boomer birth years lasted between 1946 and 1964, spanning an age bracket of 18 years. They were born at a time when WWII had just ended, and there was a feeling of hope in the US, in particular.

Coupled with the hard work put in by the two previous generations, Boomers had enough time to figure out their future.

The post-war years allowed them to do what others had always failed to do. They saw a future of prosperity, which also encouraged new Boomer couples to give birth to many children.

The boom lasted approximately 20 years.

The bumper birth rate created a new era of consumerism that helped drive the US economy and created a new breed of rich and mindless individuals.

According to Forbes, the Baby Boomer cohort

became especially well-known for its cultivation of self and its carelessness about material wealth.

The Boom Generation

The name Baby Boomer became popular in 1977, thanks to a Washington Post publication about the future of the world economy.

The phrase was used in reference to the boom in childbirth following the return of American fighters from war, and eclipsed other names such as Rock and Roll Generation and Generation Jones.

The Baby Boomer phrase became widely accepted around the world to denote varying opinions and emotions:

  • The Chinese through Chairman Mao Zedong used it in the 1960s to encourage conception.
  • The Germans used ‘babyboomers’ to refer to the upsurge of babies in the 1960s.
  • The Dutch used ‘de baby boomers’ to point out the beneficiaries of wealth through the 1960s.
  • The French used ‘les baby-boomers’ to refer to a student generation that rioted in 1968.
  • The Italians view the birth years of the 1960s as byproducts of the economic boom at the time.

A few strong characteristics of Baby Boomers:

  • Ambitious, goal-oriented, and competitive
  • Focused and believe in more hours at work
  • Some times careless about wealth
  • Resourceful and team players
  • Bureaucratic

Other notable events during the Baby Boomer years:

  • Apart from bumper births, other notable events during these years included the Vietnam War and the enaction of the Civil Rights Act in 1964.
  • In the US alone, African-Americans make up 10 percent and Hispanics 8 percent of this demographic group. Baby Boomers will account for 20 percent of the American population as they age.

Popular personalities in these generation years are George W Bush (1946), Steve Jobs (1955), Tony Blair (1953), Princess Diana (1961), Jeff Bezos (1964), Nicholas Cage (1964), Johnny Depp (63), Bill Clinton (1946), Barack Obama (1961), Donald Trump (1946), Bill Gates (1955) and George Clooney (1961).

4. Generation X: (1965 – 1979)

The age range for Generation X lasted only 14 years, stretching between 1965 and 1979.

Also called Baby Buster or Gen X, the cohort reversed the baby boom trend by registering low birth rates!

Similar to the Silent Generation, Gen X is unfortunate to be sandwiched between two popular generations: Baby Boomers and Millennials.

The photographer Robert Capa came up with its name, which was then used to mean ‘unknown’.

The X generation desired, and even today prefers not to be defined in any manner. This name was made popular by Douglas Coupland, in his 1991 book ‘Generation X: Tales for an Accelerated Culture’, to tell a story of a group of young men (Gen X) living in their own lost world.

Gen X is also defined by its love for music and art, and actually pioneered pop culture as we know it today. Xers grew up watching lots of TV soaps, and for this, have fond memories of ‘Friends‘ and other popular TV series.

The generation also groomed an increase of single-parents and continues to record higher divorce rates than other generations, right into the 21st Century.

They are independent-minded, educated, informal, casual, entrepreneurial, and are passing on the same traits to their children, – the Z cohort.

X is also known as the last generation to hold dear to its culture and education, and is the last to understand a different cultural world before technology became the norm.

According to Vanity Fair,

Generation X, the last Americans schooled in the old manner, the last Americans that know how to fold a newspaper, take a joke, and listen to a dirty story without losing their minds.

Following the innovation and distribution of the first lots of microcomputers in the 80s and 90s, Generation X somehow became one of the first to interact with technology.

Finally, Gen Xers, who are well into their 40s and 50s and defined by many cultural identities, such as Parental Advisory, is also touted as the last chance society has to preserve traditional values that are fast becoming extinct.

General characteristics of the Xers:

  • Work hard
  • Believe in work-life balance
  • Independent-minded
  • Flexible and direct
  • Self-reliant
  • Thinkers and embrace feedback
  • In debt
  • Cynical?

Famous personalities from these generation years: Jay Z (1969), Tiger Woods (1975), Halle Berry (1966), Julia Roberts (1967), Celine Dione (1968), and Will Smith (1968).

5. Generation Y: (1980 – 1994)

Also called Millennials, the Generation Y cohort was born between 1980 and 1994, stretching for 15 years. The Millennial cohort was born at a time when technology was taking true shape, majorly for productivity.

The use of the internet helped them consolidate their grip on technology, and embrace the wide-ranging possibilities in the 21st Century.

Most Millennial children were parented by the Baby Boom generation and were named so because they bore the responsibility and opportunity to fully harness the experiences of technology, at the start of the new millennium.

Technology remains critical for driving productivity and has become the tool of choice even at home.

This correlation with the initial years of digital evolution explains why Millennials use technology to extend their reach and venture into global markets. They have used these to drive and shape economies around the world.

Millennials have grown up in a time of rapid change, giving them a set of priorities and expectations sharply different from previous generations.

Who are they?

A large chunk of millennial parents are also renowned for championing a new age of parenting, unlike the Boomers and Xers. Apart from being ethnically and racially diverse, they are more likely to entertain their children to don wearable gadgets and try out different AI innovations.

In a 2018 survey carried out by Go Daddy, 48% of millennial parents deemed it fine for their Alpha children to have an online experience, compared to only 27% of Gen Xers.

The general traits of Millennials:

  • Socially driven
  • Ethically diverse
  • Tech-driven and curious
  • Educated and multi-career based
  • Financially conscious and therefore stable
  • Poor at interpersonal skills
  • Less religious

Popular figures from this era: Mark Zuckerberg (1984), Taylor Swift (1989), Christina Aguilera (1980), Nicki Minaj (1982), Rihanna (1988), and Beyoncé (1981).

6. Generation Z: (1995 – 2009)

The Generation Z birth years lasted only 13 years, stretching from 1996 to 2009. The Zs are also known as the children of Generation X.

As of 2024, when the last Alpha will be born, they will total close to 27 percent of the workforce, according to McCrindle.

The Z or iGen, just like the previous generation Y, has immersed itself deep in the world of the internet and technology. Unlike their predecessors, they exhibit a sense of euphoria and hope to avoid past mistakes by earlier generations.

They also approach fancy lifestyles rather passively in comparison to Millennials. For example, they learn to drive late and become sexually active much later in life. They also indulge in alcoholic beverages a little later than the previous generations.

Instead, they spend most of the time planning for their future amidst the tight work conditions around the world.

The huge amount of information they are exposed to has also affected their concentration. Hence, they are always multi-tasking and have developed short attention spans.

They may seem not to have time for serious stuff at school and at work, but experts predict they will be more goal-oriented and pragmatic.

These traits have led experts to somehow liken them to the Silent generation of the 1920s to 1940s.

Characteristics of Z:

  • Tech-savvy and ‘always on
  • Poor at interpersonal skills
  • Reduced attention span
  • Indoor generation
  • Ethnically diverse
  • Set for online social interactions
  • Less religious
  • Personalized learning

Popular iGens: Baby Ariel (2000), Zendaya (1996), and Baby Kaely (2004).

7. Generation Alpha: (2010 – 2024)

Generation Alpha is the latest in the chart of generation cohorts, and one that best suits the digital native description.

The Alpha cohort brings together people born between 2010 and 2024, adding up to a total of 15 years. The cohort replaced Generation Z whose birth years fell between 1996 and 2009.

It is estimated that 2 million Alpha kids are delivered weekly in health facilities around the world, and their numbers will reach a whopping 2 billion as of 2024.

As of 2022, the eldest Alpha child is 12 years old.

The first Alpha kids were born in 2010, the same year the first iPad was released. The iPad kicked started a tablet war between manufacturers, which helped catapult tablets into the Alpha life.

These are popular tools for collaborative learning, and have shaped both Alpha and Gen Z lives. But maybe not for so long!

Alphas will probably be the most transformative generation yet, at least until the Beta generation arrives. Alphas are born in a world saturated with gadgets and are experiencing the implementation of new technology innovations as years go by.

As much as they are deeply immersed in touchscreens their interaction with technology and the bigger picture of life is changing and will evolve drastically in the next decades.

The rapid advancements in artificial intelligence mean that interaction with the digital ecosystem will have to be responsive enough to suit their imagination.

Teen and adult Alphas will probably never use apps and cell phones the way they are used today. With the onset of the Metaverse, they will likely spend a lot of time exploring the virtual world and spaces.

They will bury themselves in games, go shopping, travel the world, chat with friends while hidden behind virtual reality (VR) headsets and glasses.

The first movers of the Metaverse just might be Generation Alpha – the most technologically integrated generation of our lifetime.


Lastly, the outbreak of the COVID-19 pandemic in early 2020 impacted Alpha childhood development in many ways.

They spent more time at home, missed out on school, and had their social lives impacted due to social distancing.

On a positive note, their diet, hygiene and overall health got better, because they were made to eat nutritious meals, keep clean, and of course sleep more.

General traits of Generation Alpha:

  • Tech-savvy and ‘always on
  • Will need 21st century skills in the classroom
  • Will readily embrace metaverse devices such as VR and AR
  • Poor at interpersonal skills
  • Will probably have reduced attention span
  • Less religious
  • Ethnically diverse & aware
  • Largely an indoor generation

Responses to “Generation Years Chart | 20th to 21st Century Generations”

  1. George Avatar

    Interesting stuff

  2. Bettie Avatar

    This is an educative discussion of generations. Thanks alot

  3. Eileen Avatar

    The fallacies of these broad groupings can be seen in your examples of the “silent” generation: Harry Belafonte? Malcom X? Muhammad Ali? These are examples of people who were far from silent by your description. Also? To group together people born 20 years apart is problematic. Someone born in 1925 lived thru the Depression; some one born
    I’m 1945 had the same influences as someone born in 1946-1955. I wouldn’t put too much stock in this other to separate people by age rather than bring them together. By the way, Trump has as short an attention span as anyone born in the 21st century.

    1. Alfred Amuno Avatar

      I partly agree with you Eileen that generational groupings sometimes don’t make conclusive meaning but many times they do.

      A closer look at my family clearly shows how different I am from my parents and grandparents, for example. My outlook of work, play and even social life is quite different in comparison to my predecessors. The same is true when it comes to my children who seem to have a totally different outlook on life, work, and play.

      Looking around them, their perception of life rhymes with that of their peers.
      You are right about Trump and there should be a reason for his behavior, or else it is an exception which is a fact of life and science. Who knows, his children will probably propagate the same attention span to the next generation.

      However, a closer look at Trump and his ‘complete lifestyle’ is explained in the apparent boom in both wealth and children during the Boomer years.

  4. Ginny McCann Avatar
    Ginny McCann

    As a person born in the middle of World War II, the youngest of five girls, raised by a widowed mother from the age of 5, I find the description of the so-called Silent Generation to be overly broad and somewhat deprecatory. My mother had to return to work after my father’s early death at 49. Fortunately, in 1947, my parents had built an in-law apartment in the large attic of our house for my maternal grandmother and unmarried aunt so that Nana would have someone in the house during the daytime, Unfortunately, my mother’s necessary return to work after my dad’s death, frustrated that intention and was complicated when the eldest daughter entered the Convent six months after my Dad’s death. Many responsibilities fell on the shoulders of the fourteen year old who became the “eldest” child and who rode herd on her younger siblings after school.. Being raised in the 50’s was not Ozzie and Harriet. We all had responsibilities. We did what we had to do because that was what was expected of us and that was life. My mother did the wash on the weekend. After school, the 14 year old rode herd on her 11, 10 and 5 year old sisters. Although we had Nana in the attic apartment, as an octogenarian, she was not involved in babysitting at her advanced age. She was, however, always available for reading a story to a grandchild or for a hug after school. We were able to stay in our house as my aunt, a teacher, insisted on paying rent which she periodically increased based on rising costs.. When the eldest sister left the convent after two and a half years, our aunt helped with tuition as my sister had lost her college scholarship with her sojourn in the convent. The local college evaluated the courses she had take in the convent and she was able to enter as a Junior in the elementary ed program that would graduate her the most quickly, I don’t remember our life being “difficult” although I did know that there were things we could not afford. Our pastor gave my fourteen year-old sister a scholarship to the Parish’s high school. That scholarship also covered tuition for the three of us younger girls right through the time the two girls just older than I graduated from high school. The pastor also contributed to my sister’s college tuition. I luckily earned a scholarship to a private Catholic girl’s high school, the same school that my mother and aunt had attended. All the girls earned spending money through babysitting, working in local stores after and summer office jobs. We always gave a portion of our earnings to Mom. I took home $22.90 a week from my summer job in the County and gave Mom $10. It was what we did in the late 50’s to early 60’s and we didn’t question it. All of us girls paid for our own weddings. We bought sample wedding dresses from what was available on the rack in one of the “nice” women’s clothing stores in our city. They were beautiful and we didn’t feel we had to have a dress from the pages of Vogue. We had beautiful weddings that we paid for ourselves. We did not feel deprived because we contributed to the household or to our own weddings.. We knew from an early age that we were loved. I remember the day, when in high school, that my mother showed me a piece of paper showing that the mortgage on our house was paid in full! She was such a brave woman who had accomplished so much when her life changed drastically. She was sustained by her Faith, her family and her strong determination to survive when all seemed hopeless.

    1. Alfred Amuno Avatar

      Thanks, Ginny McCann for the lovely story, and sorry if the analysis of the Silent Generation sounds deprecatory to you which it shouldn’t. Most of the negativities were echoed by the Times Magazine back then. It was their opinion in 1951.

      I also don’t think the cohort was ravaged by poverty because as written above, it was loyal and worked hard to make ends meet. It is what the people had to do amidst what was happening around the world.

      Due to their hard work, they created room for the high-spending Boomer generation.

    2. Jennifer Little Avatar
      Jennifer Little

      Born 1948 I’m on the same wavelength as you Ginny but with an Aussie slant. I also bristle when told how lucky I am to own my own home, modest as it is. I & family went without & worked long hours to achieve this – “lucky” my foot! I still go without modern frills to ensure I stay here. Not impressed with some of the younger generations who believe us oldies should move over & relinquish what we have worked so hard for just because they didn’t provide for themselves.

  5. Benjamin S. Avatar
    Benjamin S.

    Very interesting. Also a bit disappointing. Society has gotten soft and less capable on their own and more dependent. Not to mention overweight. But I find we have lost a certain aspect of ourselves that older generations had. Obviously du to great technological strides but I feel that people have taken in technology to much and use that to replace otherwise easy and experience creating actions. Never the less. Along with these cons, there are pros as always.

    1. Alfred Amuno Avatar

      Very true Benjamin. The older generations have a responsibility to straighten matters a little bit, but again, society keeps changing and the new generations will always prevail with time.

  6. MzLady Avatar

    Very interesting to not only read the article, but the replies give fascinating context. A really very good article…

    1. Alfred Amuno Avatar

      Thanks for the compliment MZLady

  7. todd lissner Avatar

    These r not always exact and there’s in between generations also such as xillennial and zillennial

  8. Enzo Blake Avatar
    Enzo Blake

    I think that the idea of newer generations being less capable and more dependent is a stereotype that was created based on a finite sample size, I am a part of generation Z and I think my attention span is rather high, higher than my grandpa at least (who is a Boomer) and I also think that I can do many things that past generations couldn’t, I can’t run pastors and live threw wars but I know that my ability to use tech is far beyond older generations and with more information at my disposal I also can learn much faster than other because I was given the resources to learn better, this does not make me more dependent but rather a stronger learner. it is the job of a parent and a teacher to teach with the expectation that the student will surpass them, that they will get the opportunity to learn from them, and therfore saying that newer generations are reliant on technology is a falsehood it is a resource like any other how is it different to say a book, in fact you could imagine it as a studying tool that gives information, at a speed faster than any book. To the person that wrote this artcle this has nothing to do with what you wrote but rather with what the comments had said

    1. Guy fawkes Avatar
      Guy fawkes

      What do you mean “I can’t run pastors and live threw wars”? Threw? Run pastors? Huh?

  9. Curious Babyboomer Avatar
    Curious Babyboomer

    I don’t see anything about “The Beta Generation”. Does that mean the Alphas will have everyone killed off by the year 2026?

    1. Alfred Amuno Avatar

      Hahaha … I guess not. We will be very much alive come 2026. We may also need to wait until after 2025 to speculate about the Beta cohort – or whatever name they will be called.

  10. Someone Who Knows Avatar
    Someone Who Knows

    This is a shameful article. This is an article filled with false comments & destructive comments . I have lived thru quite a few of these generations. How could someone born in 1945 have generational traits in common with someone born 20 yrs. later?
    This article must have been written by a very young, white, college educated liberal!
    Stupid! Stupid! Stupid!
    Honestly, I believe this writer is feeding hate by writing these untrue comments. Liberals want young people to hate & blame the older generations for all America’s problems.
    Generations X and Z actually are the problem with America.
    The Baby Boomer Generation was the last generation with the strongest work ethic!
    The young people in this country have no ambition & no work ethic. Out of the now existing generations, the only one that is creative or looks to the future is Generation Y.

    1. Ramon Rosales Avatar
      Ramon Rosales

      Of course this are personal opinions, saying this generation has or had more work ethic than this generation is not entirely accurate, because there are people en every generation that has excellent work ethic and vice versa.

  11. Seija Avatar

    Interesting that there seems to be little concern by any cohort of global warming and global problem-solving. Yes, technology and covid have brought us indoors. Will we care even less? Oh no!

    Also, I have had the impression that boomers, born as a result of parents coming home from war and multiplying, gave their children “a better life then they had” after WWII and the Great Depression, without necessarily instilling a matching work ethic, resulting in a greater sense of entitlement than previous generations and lower ethical standards in place of personal responsibility.

    The choice to obtain a good education which spoke to the many ways that people learn was not always available but a growing awareness of this need has been evolving

  12. William L. Avatar
    William L.

    This is a great article. Every generation and each individual is influenced by local and global conditions that influence daily life. I’m a Gen Xer , and also someone who knows, because we began listening. Understanding how each generation has contributed to the next. Struggles my parents went through being absolutely the Silent Generation, and my grandparents living through World Wars and desperate Depression years.
    For the record I am a very hard worker, a latch key kid, very independent, and saw how the open internet could be to increase communication across the world. Oh well saw how the old ways needed to change in the world of computers, and I am curious and excited to see where succeeding generations will take us. Hopefully listening and understanding other points of view.

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