Cov khoom ua si ntxhw mos mos tau pib muaj nyob rau hauv Tebchaws Europe thaum kawg ntawm xyoo pua 19th, qhov chaw uas cov menyuam roj hmab tsiaj uas xaws tes yog cov khoom tshwj xeeb rau cov menyuam yaus. Ntxhw, uas yog lub cim ntawm "lub zog thiab kev txawj ntse", tau nrov zuj zus. Xyoo 1903, cov khoom ua si ntxhw uas cov tuam txhab German tsim tawm tau coj lawv mus rau cov tsev neeg ib txwm muaj. Qhov tseem ceeb, cov neeg African tseem siv cov khoom ua tes hauv kev ua koob tsheej, khaws cia ntau pua xyoo ntawm kev sib raug zoo ntawm kab lis kev cai.