Newfoundland yog ib hom dev uas muaj npe tom qab thaj chaw uas cov dev thawj zaug tshwm sim. Txawm hais tias tam sim no tus yug yog suav tias yog Canadian, qhov tseeb, thaum lub sijhawm nws tshwm sim, thaj chaw tau koom nrog cov neeg Khab, thiab tom qab ntawd Tebchaws Meskas, thiab Canada, ua ib lub tebchaws txawv tebchaws, tau tshwm sim tom qab. Tam sim no, cov kws tshawb fawb tsis tuaj yeem hais meej tias qhov yug tau tsim li cas, thiab cov dev twg koom nrog.
Muaj ntau ntau txoj kev xav, tsis muaj ib qho uas muaj kev lees paub txaus raws li qhov tseeb tiag. Thawj txoj kev xav yog tias nyob ib ncig ntawm lub xyoo pua 15th thiab 16th, raws li qhov tshwm sim ntawm kev hla ntawm ntau tus dev yug, ntawm cov uas, raws li cov dev yug tsiaj, yog Pyrenean Shepherds, Mastiffs, thiab Portuguese Dej Dogs, cov tsiaj uas peb tam sim no paub tias yog Newfoundland yug los.