Translation:We left early, because my uncle wanted to go home.
In Norwegian it's quite common to omit the possessives when talking about family members, but in English it's seldom done other than for mum/dad/mother/father. Because of this, the most natural way of translating this sentence is with a "my" in English, which is implicit in the Norwegian sentence.
Having said that, we do allow omitting the possessive here - we just don't think it's the best translation.
Crikey Deliciae! I've just started Babbel norsk...and had to come back here again to cheer myself up! It's all a bit tutonic and regimented... and sometimes it's a battle to just move on ..because I've entered a space wrongly or (forgotten a COMMA!!) Thank goodness I started here with you...First lesson on Holidays expected me to know the words.. QUAY, FIREWOOD and FISHING PERMIT !Thats tough on a beginner. And I've no ideas where I am in the bigger order of things over there! Missing you all..hhh