▁of ▁stat istic ian ▁Louis ▁Bert illon ▁and ▁the ▁older ▁brother ▁of ▁Al phon se ▁Bert illon . ▁He ▁was ▁educated ▁as ▁a ▁phys ician ▁but ▁turned ▁to ▁statistical ▁analysis . ▁In ▁ 1 8 8 0 ▁he ▁wrote ▁La ▁Statist ique ▁hum aine ▁en ▁France . ▁In ▁ 1 8 9 1 - 9 3 ▁he ▁cha ired ▁a ▁committee ▁that ▁introduced ▁the ▁Bert illon ▁Classification ▁of ▁C aus es ▁of ▁Death , ▁which ▁was ▁adopted ▁by ▁several ▁countries ; ▁it ▁was ▁the ▁prec ursor ▁to ▁today ' s ▁International ▁Statist ical ▁Classification ▁of ▁D ise ases ▁( IC D ) ▁which ▁continues ▁to ▁be ▁published ▁by ▁the ▁World ▁Health ▁Organ ization . ▁By ▁comparing ▁statistics ▁from ▁different ▁European ▁countries ▁he ▁discovered ▁the ▁correlation ▁between ▁suic ide ▁rates ▁and ▁divor ces , ▁claim ing ▁that ▁both ▁phen omena ▁were ▁associated ▁with ▁social ▁dis equ ilib rium , ▁ideas ▁influen cing ▁É mile ▁Dur k heim ▁in ▁his ▁work ▁Su ic ide . ▁ ▁Bert illon ▁married ▁the ▁phys ician ▁Caroline ▁Sch ult ze ; ▁they ▁had ▁two ▁daughters . ▁ ▁He ▁died ▁in ▁Paris ▁on ▁ 4 ▁July ▁ 1 9 2 2 . ▁Ant icip ating ▁his ▁death , ▁he ▁prepared ▁a ▁letter ▁to ▁several ▁newspaper ▁edit ors ▁which ▁stated ▁" When ▁you ▁receive ▁this ▁I ▁will ▁no ▁longer ▁exist ," ▁and ▁respect fully ▁requested ▁an ▁ob itu ary ▁for ▁himself . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁ ▁Category : 1 8 5 1 ▁birth s ▁Category : 1 9 2