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

Lee Erwin is born.

John Chambers is born.

Hazel Catmull is born.

Kim Hamilton is born.

Randy Roberts is born.

Christopher Neame is born.

Deborah Lacey is born.

Jeff and Jerry Rector are born.

Conrad Hurtt is born.

Mary Kay Adams is born.

Michael J. Sarna and Robert T. Jeschonek are born.

Treatment for  is submitted.
Treatment for  is submitted.
The final draft script of  is revised the first time.

First day of filming on .
Third revised final script draft for  is submitted.

Paul F. Tompkins is born.
Fourth day of filming on .
Story outline for  is submitted.

The Fifteenth UK Story Arc concludes in TV21 & Joe 90 #51 with the seventh of seven installments.

William Shatner signs on to reprise his role as James T. Kirk in Star Trek: Phase II. 

Twenty-sixth day of filming on .

Rosemary Morgan is born.
Twentieth day of filming on .

Fifth day of filming on .

Lil Cory is born.
Fourth day of filming on .

Ed Peck dies.

Tony Dante dies.

Fifth day of filming on . 
Final draft script for  is submitted.

Second day of filming on .

Fourth day of filming on .
Fourth day of filming on .

Twelfth day of filming on .

First day of filming on  (postponed from the previous day)
Re-shoot of scene 3 for  (postponed from the previous day).

First day of filming on .

Third day of filming on .

Frank Serafine dies.

Fran Bennett dies.

Unknown year
Brooke Benko and Shana Ann Golden are born.

de:12. September
es:12 septiembre
it:12 settembre
nl:12 september
pt:12 de setembro
ru:12 сентября
sv:12 september