date of birth
birthdate , also: birth date , also: DOB , also: d.o.b.

The date of his birth has been given as 640.

We are not quite certain about the date of his birth.

All she needs is the date, time and place of your birth.

Not much is known about her date of birth or death.

His date of birth was likely between 1095 and 1100.

Until a few months ago, he had not known his birth date.

His birth date was probably in either 1851 or 1852.

The date of his birth is not known, but he was likely born after 1164.

I think he's set this with the date of his birth.

It is also the date of his birth, 120 years earlier.