The actual Chumash people was entrenched along the California Central Coast - including around modern Santa Barbara, a probable real-life counterpart to Sunnydale - and numbered as many as 20,000 people before contact with Europeans. The tribe survives today as the Santa Ynez Band of Chumash, which has U.S. recognition as a Native American tribe and controls a reservation and casino in Santa Ynez, California.
In an early draft of the script, Spike was invited into Giles's apartment by Buffy. However, the scene didn't make it to air and the invitation occurs between acts. This was a year before it was established in Real Me (2000) that only an actual resident could invite a vampire into a domicile.
This is preceded by The Bachelor Party (1999), in which Doyle received a vision of Buffy in trouble. Later, Buffy follows Angel back to Los Angeles, as seen in I Will Remember You (1999).
Anya acted as if she met Angel for the first time; they had, however, briefly met during the rite to send back Vamp Willow to the Wishverse in Doppelgangland (1999).
This is the first of only two times to feature Buffy's three primary love interests (Angel, Spike, and Riley). The other is The Yoko Factor (2000). While all three also appear in Fool for Love (2000) Angel/Angelus does not appear in person but only in Spike's flashbacks.