Karno 19 lan, ilmu wu anthropologiya be lardu faransa be, kuranza Paul Broca (1824-1880), hangal nza chadu craniometrybe ro kuro sandi Jamus ye, kuranza Rudolf Virchow (1821–1902), kulashi nza nasha kǝndaram Adam gana be ya kwasa wa tinzǝ da na be yaro chado.