12 May
A list of events which occurred on the 12th of May.

Peter Allan Fields is born.

Jon Cavett is born.

Paula Crist is born.

Richard Riehle is born.

Jennifer Hetrick is born.

April Grace is born.

Rob Moran is born.

Second day of filming on . Planetside scenes are filmed today.
A planned sequel to  is drafted by John D.F. Black (this script will eventually be adapted into ).
Story outline submitted for undeveloped The Original Series episode "He Walked Among Us" by Norman Spinrad and Gene L. Coon.

David Mack is born.

Steve Ihnat dies.

The Thirty-Fifth UK Story Arc continues in Valiant & TV21 #85 with the twelfth of seventeen installments.

Philip Boyd is born.

Ryan Ridley is born.

Amy Wheaton is born.

Fifty-seventh and final day of filming on . Principal photography is completed.
Eugene Cordero and Larc Spies are born.

Thirty-third day of filming on .

Filming wraps on the first season of 

 airs.

Thirty-first day of filming on .

 airs.
 airs.

 airs.

Remastered version of  airs.

Ava Cheung is born.

 premieres in Japan.
Star Trek: Original Motion Picture Collection (Blu-ray), Star Trek: Motion Picture Trilogy (Blu-ray), Star Trek: Motion Picture Trilogy (DVD), The Best of Star Trek: The Original Series, and The Best of Star Trek: The Next Generation are released in Region 1/A.
Pocket Books novelization of , by Alan Dean Foster, is released.

Phyllis Douglas dies.

John Boyer dies.

Frank Bolle dies.

Wilbur Finks dies.

 premieres on Paramount+.

Unknown year
Gregory L. Norris is born.

de:12. Mai
es:12 mayo
it:12 maggio
nl:12 mei
pt:12 de maio
ru:12 мая
sv:12 maj