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

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

His birth date was probably in either 1851 or 1852.

"Yes, you took my birth date and a significant experience."

"Do you have your name and birth date written down?"

Some sources place his birth date as May 1, 1772.

He is also known to use January 5, 1922 as his birth date.

This suggests his birth date could be 1862 or 1863.

George London's birth date is not certain but it was probably about 1640.

Not much, so long as all the people at each address had different birth dates.

He's 17 years old, but his birth date and place are unknown.