When was the writer of the thirteenth episode of "30 Rock" born?
Up All Night (30 Rock):  It was written by the series' creator and executive producer Tina Fey, and was directed by Michael Engler. Tina Fey: Elizabeth Stamatina "Tina" Fey ( ; born May 18, 1970) is an American actress, comedian, writer, and producer.
May 18, 1970