Check out David Bierens de Haan's haircuts throughout his career:
David Bierens de Haan had a variety of different haircuts during his lifetime. He was most recognized as an outstanding mathematician and university teacher. However, the Dutch mathematician and historian of science was mostly known for his beautiful fashion sense and his adorable character. Before his tragic death at age 73 he was repeatedly in the spotlight of magazines and tabloids due to his outstanding haircuts. Check out David Bierens de Haan's famous looks in the image gallery right here: