On this day in the Star Trek universe:

Star Trek: The Next Generation (1988 & 1994)

Star Trek: Voyager (1997)

Star Trek: Enterprise (2003)

Star Trek: The Next Generation

Season 1. Episode 22.

Episode entitled: Skin Of Evil.

Released April 23, 1988.

Directed by Joseph L. Scanlan.

Written by Joseph Stefano, Hannah Louise Shearer, Tracy Tormé, Hans Beimler, Richard Manning.

Created by Gene Roddenberry.

Music by Ron Jones.

Cast: Patrick Stewart, Jonathan Frakes, LeVar Burton, Denise Crosby, Michael Dorn, Gates McFadden, Marina Sirtis, Brent Spiner, Wil Wheaton, Mart McChesney, Ron Gans, Walker Boone, Brad Zerbst, Raymond Forchion, Majel Barrett, James G. Becker, Juliet Cesario, Dexter Clay, Tim McCormack, Guy Vardaman.

Star Trek: The Next Generation

Season 7. Episode 21.

Episode entitled: Firstborn.

Released April 23, 1994.

Directed by Jonathan West.

Written by René Echevarria, Mark Kalbfeld, Naren Shankar.

Created by Gene Roddenberry.

Music by Dennis McCarthy.

Cast: Patrick Stewart, Jonathan Frakes, LeVar Burton, Michael Dorn, Gates McFadden, Marina Sirtis, Brent Spiner, James Sloyan, Brian Bonsall, Gwynyth Walsh, Barbara March, Joel Swetow, Colin Mitchell, Armin Shimerman, Michael Danek, John K. Shull, Rickey D'Shon Collins, Majel Barrett, David Keith Anderson, Steve Blalock, Chuck Borden, Cullen G. Chambers, Tracee Cocco, Debbie David, Gunnel Eriksson, Jasmine Gagnier, Keith Gearhart, Thomas Griep, Dennis Madalone, Lorine Mendell, Tom Morga, Pauline Olsen, Suzie Plakson, Keith Rayve, Joyce Robinson, John Saint John, Anne Verrier Scatolini, Dee Giffin Scott, Oliver Theess, Mikki Val.

Star Trek: Voyager

Season 3. Episode 22.

Episode entitled: Real Life.

Released April 23, 1997.

Directed by Anson Williams.

Created by Rick Berman, Michael Piller, Jeri Taylor.

Written by Jeri Taylor, Harry 'Doc' Kloor, Lisa Klink.

Based on Star Trek, created by Gene Roddenberry.

Music by Dennis McCarthy.

Cast: Kate Mulgrew, Robert Beltran, Roxann Biggs-Dawson, Jennifer Lien, Robert Duncan McNeill, Ethan Phillips, Robert Picardo, Tim Russ, Garrett Wang, Wendy Schaal, Glenn Walker Harris Jr., Lindsey Haun, Stephen Anthony Ralston, Chad Haywood, Majel Barrett, Tarik Ergin, Susan Henley, Kerry Hoyt, Richard Sarstedt.

Star Trek: Enterprise

Season 2. Episode 21.

Episode entitled: The Breach.

Released April 23, 2003.

Directed by Robert Duncan McNeill.

Written by Chris Black, John Shiban, Daniel McCarthy, André Bormanis.

Created by Rick Berman, Brannon Braga.

Based on Star Trek, created by Gene Roddenberry.

Opening theme song: Faith of the Heart, performed by Russell Watson.

Closing theme: Archer's Theme, by Dennis McCarthy.

Music by Jay Chattaway.

Cast: Scott Bakula, John Billingsley, Jolene Blalock, Dominic Keating, Anthony Montgomery, Linda Park, Connor Trinneer, Henry Stram, Mark Chaet, Laura Putney, D.C. Douglas, Jamison Yang, Alexandrea Ortiz, Solomon Burke Jr., Daphney Damaraux, Evan English, Scott Sterling Hill, Aldric A. Horton, Aouri Makhlouf, Alexander D. Slanger.