Laurel speaks of the canary in the picture that her father gave to her sister. In the DC Comic Universe, Dinah 'Laurel' Lance is known as the Black Canary.
The establishing shot of Starling City's Chinatown neighborhood is actually of San Francisco. In the comics, Star City (known as Starling City in the show) is based on San Francisco.
First appearance of Dinah Lance, Laurel's mother.
In this episode we learn that Oliver Queen became fluent in Chinese while stranded on the island and speaks it with a "perfect accent."