Briarcliff Manor is mentioned and appears in a picture in this episode, thus connecting 1984 with Asylum.
The Camp Redwood Food & Music Fest lineup as seen on the flyer is: Billy Idol, Flock of Seagulls, The GoGo's with Belinda Carlisle (who had gone solo by then), Dexy's Midnight Runners, Paul Shaffer, KajaGooGoo, Toni Basil, Thompson Twins, Men Without Hats, Debbie Gibson, Rick Springfield, and Gary Numan.
Margaret mentions that she turned the Lizzie Borden House into a bed and breakfast. In reality, it has operated as a bed and breakfast since 1996 under the ownership of Martha McGinn, who inherited the house from her grandparents.
The computer in Margaret Booth's home office is Tandy 1000 personal computer made from 1984 to 1993.
As the episode title declares, this is the 100th episode of American Horror Story.