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					Originally Posted by 33girl  4 years is not a generation, and they are not part of the baby boom. | 
	
 The Baby Boom generation is often, though not always, counted as being from 1945 to 1964 or so (1964 being when a sharp decline in the birth rate can be seen).  Steve Gillon breaks that into Boomer (up to 1957, when the birth rate hit its peak) and Shadow Boomers (1958-64).  Strauss and Howe defined Gen X (calling the "13th generation") as those born between 1861 and 1981.
But again, these are mainly social constructs.  Whether I'm labeled as a Boomer or Gen X is meaningless as far as understanding how I learn.  Sideline question to show how this kind of label may not be valuable:  As a child born in 1961, does it matter that I'm the youngest in the family, or that my parents were depression children and WWII-era adults rather than WWII-era children?
The whole Gen X/Gen Y question really seems like a red herring to me.  It's may be useful for advertisers, but I question it's usefulness beyond making broad generalizations about learning styles.