Date of birth of anselm kiefer?

Between 22 August and 31 October 1451

December 16 1770

Personaly, i'd say date of birth. Both ways are correct, though

you date of birth can be anything to do with numbers days and months for E.G; 18th January 2001 or in numbers 18/01/2001 or 18/1/01

1812