First appearance of Garak the Tailor.
The change which takes place in Kira's hairstyle from the pilot Emissary (1993), was at the request of Nana Visitor herself.
Among the clothes seen in Garak's shop is the costume worn by Steven Miller in Haven (1987), the Risa outfit worn by Sovak in Captain's Holiday (1990) and one of Kamala's dresses from The Perfect Mate (1992).
Sisko mentions the Klingon Civil War, which took place in TNG: "Redemption (1991)". This episode reveals the House of Duras are attempting to rebuild their forces by making profit.
This episode was broadcast out of order. It should have been shown as #1.3 instead of A Man Alone (1993).