birth date

[ burth-deyt ]

/ ˈbɜrθˌdeɪt /

the date of a person’s birth, usually expressed as a specific day, month, and year.

Origin of birth date

First recorded in 1550–1600

He evinced the opposite of the temper usually ascribed to the “Shepherd-boy” —a birth-date by Ex.
Assimilative Memory|Marcus Dwight Larrowe (AKA Prof. A. Loisette)
“Chaplet”—a wreath or garland signed for by him in his ambitious hopes—expresses his birth-date by Con.
Assimilative Memory|Marcus Dwight Larrowe (AKA Prof. A. Loisette)
On the first day of April, Bismarck's birth-date, we were expecting something unusual along the front and were not disappointed.
On the Fringe of the Great Fight|George G. Nasmith
Nowhere have I found an indication of Portocarrero's birth-date.
Fray Luis de Len|James Fitzmaurice-Kelly

He couldn't, very well, for its date antedated his own birth-date.
What Is Man? And Other Stories|Mark Twain (Samuel Clemens)