Star Trek: The Next Generation: Season 4, Episode 11

Data's Day (5 Jan. 1991)

TV Episode  -   -  Action | Adventure | Sci-Fi
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Data tries to comprehend the complex emotions between O'Brien and Keiko, who are about to be married.



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Title: Data's Day (05 Jan 1991)

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Episode cast overview:
Sierra Pecheur ...


Second officer Lt. Commander Data accepted to speak a complete record of a day in his functioning for the benefit of scientific android engineer Commander Maddox and concludes his programming must be improved concerning interaction with human emotions, most puzzling given human practices such as irony. Chief Miles O'Brien's human wedding is amply confusing, even for Worf, bride Keiko Ishikawa's gibbers even more illogical. Learning dances and which is appropriate from Dr. Crusher prove easy. Conan Doyle's logic of elimination Data soon masters, in time to solve a mysterious accident during negotiations with a Romulan admiral... Written by KGF Vissers

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Release Date:

5 January 1991 (USA)  »

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Technical Specs

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Aspect Ratio:

1.33 : 1
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Did You Know?


Debut appearance of the character of Keiko Ishikawa-O'Brien played by Rosalind Chao. Keiko would become a semi-regular character on both Star Trek: The Next Generation (1987) and Star Trek: Deep Space Nine (1993). See more »


While officiating at a wedding ceremony, Captain Picard says, "Since the days of the first wooden vessels, all shipmasters have had one happy privilege: that of uniting two people in the bonds of matrimony." This is false; whatever Starfleet's own fictional regulations may be, the captains of seagoing ships have no particular power to perform weddings and, at least for the US, the UK, and the former USSR, there is no evidence that they ever did. In fact the navies of the US, the UK, and various other countries specifically prohibit a commanding officer from performing marriage ceremonies. See also Star Trek: Balance of Terror (1966). See more »


[first lines]
Lt. Commander Data: Second Officer's personal log, stardate 44390.1 - Record entry for transmission to Commander Bruce Maddox, Cybernetics Division, Daystrom Institute. Dear Commander Maddox. In reference to your most recent letter, I agree that your study lacks sufficient primary source information on my programming and operation. Therefore, in response to your request, this correspondence will include a complete record of my activities during a normal day, with particular emphasis on my perceptions ...
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Referenced in Star Trek: The Next Generation: The Game (1991) See more »


Isn't It Romantic?
Music by Richard Rodgers
Lyrics by Lorenz Hart
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User Reviews

Many TNG firsts.
22 April 2006 | by (United States) – See all my reviews

ST:TNG:85 - "Data's Day" (Stardate: 44390.1) - this is the 11th episode of the 4th season of Star Trek: The Next Generation.

Though this series is well into its journey (already in its 4th season), there are still a few new things the show can introduce us to. This includes Keiko Ishikawa (the future Mrs. O'Brien of TNG and DS9, played by Rosalind Chao), the arboretum (where Keiko is a botanist), the day and night watches of the Enterprise, the hair salon (including Mot the barber), the gift shop (where someone materializes a bunny doll), Beverly Crusher as the "Dancing Doctor" teaching Data to dance, Data's cat Spot, and the first wedding (which is also the first human wedding Worf has attended).

Also, Data notes that he has contemplated marriage, he recounts being introduced to Sherlock Holmes by Picard, as well as writing Bruce Maddox (from "The Measure Of A Man") a letter about his latest "human" experiences.

All in all, many firsts.

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Wait a minute....! luke_m
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