For extreme like the sporting events that came out in the 90's .
there is a k pop group called girls generation that is all girls, but I have never heard of generation g.
"a generation WAS" Generation is an identifier that turns a group into one singular noun.
Love Generation - group - was created in 2010.
Not everyone is a member of a named generation. People born in 1942 would be said to be "born during World War 2" but are called by a group name as are the "Baby Boom Generation" or the "Lost Generation."
Girls Generation's sub-group is Taetiseo (TTS)
A clan
Sandwich generation
generation
it is called a cohort
Heartaches & Heartbreaks
The consumers that were born between 1965 and 1978 are called Generation X/ The were born a year after the baby boomers.
"Generation Y" is called so because it follows "Generation X" and comes before "Generation Z" in the sequence of generational cohorts. The term "Y" comes from the idea that this generation falls between the two preceding and following generations alphabetically.