We learn that Homer was a bully in high school, and the kid he beat up would later be his boss's assistant.
The advert for Stabby-Oh's is a parody of Lucky Charms.
Originally, the main story of Lisa being threatened by a female bully would have had Lisa try to punch Francine, but ends up punching Principal Skinner and gets sent to juvenile hall, sewing counterfeit jeans, but the writers rejected it. The premise of a Simpson kid getting sent to juvenile hall would later be seen in "The Wandering Juvie" (2004).
The square root of 1 million is 1 thousand
The title is based on the musical "Bye Bye Birdie" with a book by Michael Stewart, lyrics by Lee Adams, and music by Charles Strouse. The original Broadway production of "Bye Bye Birdie" opened at the Martin Beck Theater on April 14, 1960, ran for 607 performances and won the 1961 Tony Award for the Best Musical.