We currently have the Greast Generation, Silent Generation, Baby Boomers, Generation X, Millennials, all of who were born in the 20th century, and Generation Z, who were born in the 21st century.
But did "generations" exist before that? Like were the 1700s divided into generations as well, and characteristics applied to each one? Or is this a relatively new concept in the world?
There's always more than can be said but I answered a similar question a few months ago that gets at what you're asking.