I was attempting to educate someone on a fact they were unaware of. It's a service I extend to those who haven't proven themselves utterly incapable of learning, hence why you aren't aware of it.
The Simpsons started in ‘88 (with the Tracey Ullmann shorts). Bart’s 9, so that means he was born in 1980, and the cut off for Gen-Xers is 84.