Past Tense (Star Trek: Deep Space Nine)

"**Past Tense**"
"Past Tense"
Star Trek: Deep Space Nine episodes
Episode nos.	Season 3; Episodes 11 and 12
Directed by	Reza Badiyi (Part I); Jonathan Frakes (Part II);
Story by	Ira Steven Behr; Robert Hewitt Wolfe;
Teleplay by	Robert Hewitt Wolfe (Part I); Ira Steven Behr (Part II); René Echevarria (Part II);
Featured music	Dennis McCarthy (Part I); David Bell (Part II);
Production codes	457 and 458
Original air dates	January 2, 1995; January 9, 1995;
Guest appearances
	Jim Metzler as Chris Brynner; Frank Military as B.C.; Dick Miller as Vin; Al Rodrigo as Bernardo; Tina Lifford as Lee; Bill Smitrovich as Michael Webb; Deborah Van Valkenburgh as Preston; Clint Howard as Grady; Richard Lee Jackson as Danny; John Lendale Bennett as Gabriel Bell;
Episode chronology
← Previous; "Fascination"	Next →; "Life Support"
	Star Trek: Deep Space Nine season 3
	List of episodes

"Past Tense" is a two-part episode from the third season of science fiction television series Star Trek: Deep Space Nine, the 57th and 58th episodes overall and the last episode to air before the premiere of its spinoff, Star Trek: Voyager. It is also the first episode of Star Trek: Deep Space Nine to not feature any scenes on the DS9 space station, except for the opening credits.

In the episode, a transporter anomaly sends Commander Sisko, Dr. Bashir, and Jadzia Dax back in time to a pivotal moment in Earth's history. The episode received critical acclaim for analyzing American social issues in a science fiction context, but also for addressing various societal issues such as homelessness, poverty, and technology.