On this day in the Star Trek universe:

Star Trek (1969)

Star Trek: Voyager (2001)

Star Trek: Discovery (2019)

Star Trek

Season 3. Episode 22.

Episode entitled: The Savage Curtain.

Released March 7, 1969.

Directed by Herschel Daugherty.

Written by Gene Roddenberry, Arthur Heinemann, Arthur H. Singer.

Created by Gene Roddenberry.

Music by Alexander Courage.

Cast: William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan, George Takei, Walter Koenig, Nichelle Nichols, Majel Barrett, Lee Bergere, Barry Atwater, Phillip Pine, Arell Blanton, Carol Daniels, Bob Herron, Nathan Jung, Bill Blackburn, Roger Holloway, Bart La Rue, Janos Prohaska.

Star Trek: Voyager

Season 7. Episode 17.

Episode entitled: Human Error.

Released March 7, 2001.

Directed by Allan Kroeker.

Created by Rick Berman, Michael Piller, Jeri Taylor.

Written by Brannon Braga, André Bormanis, Kenneth Biller, Michael Taylor, Robert Doherty, Phyllis Strong, Michael/Mike Sussman.

Based on Star Trek, created by Gene Roddenberry.

Music by Jay Chattaway.

Cast: Kate Mulgrew, Robert Beltran, Roxann Dawson, Robert Duncan McNeill, Ethan Phillips, Robert Picardo, Tim Russ, Garrett Wang, Jeri Ryan, Manu Intiraymi, Majel Barrett, Louis Ortiz, Pablo Soriano.

Star Trek: Discovery

Season 2. Episode 8.

Episode entitled: If Memory Serves.

Released March 7, 2019.

Directed by T.J. Scott.

Created by Bryan Fuller, Alex Kurtzman.

Written by Dan Dworkin, Jay Beattie, Kirsten Beyer, Sean Cochran.

Based on Star Trek, created by Gene Roddenberry.

Music by Jeff Russo.

Cast: Sonequa Martin-Green, Doug Jones, Anthony Rapp, Mary Wiseman, Wilson Cruz, Shazad Latif, Anson Mount, Michelle Yeoh, Melissa George, Ethan Peck, Alan Van Sprang, Rachael Ancheril, Dee Pelletier, Rob Brownstein, Alisen Richmond-Peck/Alisen Down, Hannah Cheesman, Emily Coutts, Patrick Kwok-Choon, Oyin Oladejo, Ronnie Rowe, Julianne Grossman, Arista Arhin, Riley Gilchrist, Liam Hughes, Harry Judge, Jon De Leon, Sara Mitich, Tara Nicodemo, Avaah Blackwell, Nicole Dickinson.