source in pertinent part: www.yourdictionary.com/articles/how-long-generation-today-history
In the social context, generation is generally defined as:
“a group of people who were born and lived or are living around the same time.”
It is viewed as the average time it takes for a generation to be born, grow up, and have children.
Pew Research Center notes that a generation includes a group of people born over a 15-20 period.
Generation Calculations
As you can see, calculating how long a generation lasts is not an exact science, and there’s no simple formula.
If you look at the generally recognized generations, you could say there have been 6 generations in the last 100 years between 1920 and 2020 [NOTE Added: 100 yrs. divided by 6 Generations = 16.67 avg length of each Generation in years] GI Generation, Silent Generation, Baby Boomers, Generation X, Millennials, and Gen Z.
Generational Bonds
Grouping people by generations is one way to group them based on age.
These groups are shaped by the world they live in and typically have similar attitudes or behaviors.
The generation lasts from birth to death, so it’s length varies by individual. Prior to the late 1900s, people weren’t viewed in social generations like they are today.
Generational Naming
There is no standard system for defining how long a generation lasts, what years a generation was born and ends, or how the generation gets its name. Popular generation names used today were often coined by journalists and writers.
Social Generation Examples
The best way to see how long a generation lasts is to look at the popular generations recognized today.
The GI Generation or The Greatest Generation
Experts generally agree the GI Generation includes all people born in 1924 or earlier. This group has also been called The Greatest Generation, a term coined by Tom Brokaw in a 1998 book describing those who lived through the Great Depression and fought in WWII.
The Silent Generation
A 1951 Time Magazine essay coined the term The Silent Generation, which includes people born from 1924-1945 or 1925-1942 depending on the source. This generation spans roughly 17 years.
Boomers I or Baby Boomers
This generational term is the only one used by the U.S. Census Bureau. They say Baby Boomers are those born between 1946 and 1964, so the generation spans 18 years.
Boomers II or Generation Jones
Some choose to break the Baby Boomer generation into two separate groups. Those who do claim Boomers I were born between 1946 and 1954 while Boomers II were born between 1955 and 1965.
Generation X or Baby Busters
Douglas Coupland first used the term Generation X in a book in 1991, but they have also been referred to as The Lost Generation. People born between 1965 and 1980 are considered Generation X, making this generation span 15 years.
Generation Y or Millennials
Also called Echo Boomers, this generation includes people born between 1981 and 1996. In 1993, advertisers started using the term Generation Y to describe this group, but the term Millennial became more popular and is the term used today. [making this generation span 15 years]
Generation Z or Gen Z
Gen Z is the most recent generation identified and was almost called iGeneration. In 2019, Pew Research Center decided to use Gen Z as the official term. Gen Z includes everyone born from 1997 to the current year. [making this generation span 28 years !?]
Conclusion:
A social generation typically lasts between 15 to 30 years.
However, and more specifically, many authoritative sources agree that a social generation spans approximately 20 to 30 years. As this duration allows for the average period during which children are born, grow up, and begin to have children themselves.
In this article “we” have chosen to use 24.9 to 25.4 years as the mean length of an American Social Generation. Thus, the Americans living today are the tenth 10th Generation of Americans; approximately.
“a group of people who were born and lived or are living around the same time.”
It is viewed as the average time it takes for a generation to be born, grow up, and have children.
Pew Research Center notes that a generation includes a group of people born over a 15-20 period.
Generation Calculations
As you can see, calculating how long a generation lasts is not an exact science, and there’s no simple formula.
If you look at the generally recognized generations, you could say there have been 6 generations in the last 100 years between 1920 and 2020 [NOTE Added: 100 yrs. divided by 6 Generations = 16.67 avg length of each Generation in years] GI Generation, Silent Generation, Baby Boomers, Generation X, Millennials, and Gen Z.
Generational Bonds
Grouping people by generations is one way to group them based on age.
These groups are shaped by the world they live in and typically have similar attitudes or behaviors.
The generation lasts from birth to death, so it’s length varies by individual. Prior to the late 1900s, people weren’t viewed in social generations like they are today.
Generational Naming
There is no standard system for defining how long a generation lasts, what years a generation was born and ends, or how the generation gets its name. Popular generation names used today were often coined by journalists and writers.
Social Generation Examples
The best way to see how long a generation lasts is to look at the popular generations recognized today.
The GI Generation or The Greatest Generation
Experts generally agree the GI Generation includes all people born in 1924 or earlier. This group has also been called The Greatest Generation, a term coined by Tom Brokaw in a 1998 book describing those who lived through the Great Depression and fought in WWII.
The Silent Generation
A 1951 Time Magazine essay coined the term The Silent Generation, which includes people born from 1924-1945 or 1925-1942 depending on the source. This generation spans roughly 17 years.
Boomers I or Baby Boomers
This generational term is the only one used by the U.S. Census Bureau. They say Baby Boomers are those born between 1946 and 1964, so the generation spans 18 years.
Boomers II or Generation Jones
Some choose to break the Baby Boomer generation into two separate groups. Those who do claim Boomers I were born between 1946 and 1954 while Boomers II were born between 1955 and 1965.
Generation X or Baby Busters
Douglas Coupland first used the term Generation X in a book in 1991, but they have also been referred to as The Lost Generation. People born between 1965 and 1980 are considered Generation X, making this generation span 15 years.
Generation Y or Millennials
Also called Echo Boomers, this generation includes people born between 1981 and 1996. In 1993, advertisers started using the term Generation Y to describe this group, but the term Millennial became more popular and is the term used today. [making this generation span 15 years]
Generation Z or Gen Z
Gen Z is the most recent generation identified and was almost called iGeneration. In 2019, Pew Research Center decided to use Gen Z as the official term. Gen Z includes everyone born from 1997 to the current year. [making this generation span 28 years !?]
Conclusion:
A social generation typically lasts between 15 to 30 years.
However, and more specifically, many authoritative sources agree that a social generation spans approximately 20 to 30 years. As this duration allows for the average period during which children are born, grow up, and begin to have children themselves.
In this article “we” have chosen to use 24.9 to 25.4 years as the mean length of an American Social Generation. Thus, the Americans living today are the tenth 10th Generation of Americans; approximately.