David Bierens de Haan
David Bierens de Haan ( 3 May 1822 , Amsterdam – 12 August 1895 , Leiden ) was a Dutch mathematician and historian of science . 
<triplet> David Bierens de Haan <subj> 3 May 1822 <obj> date of birth <subj> Amsterdam <obj> place of birth <subj> 12 August 1895 <obj> date of death <subj> Leiden <obj> place of death <subj> mathematician <obj> occupation