That explains some things I didn't know! Thanks for your detailed explanation.
Btw. (if I may ask) how did your ancestors come from Poland all the way to Brazil? Were they NAZI collaborators?

My family came from Poland in the 20's I guess because of the situation was not so good there in that time in terms of jobs, possibility of war (that came 10 years after) I don't know exactly why. But they didn't came alone, there are thousands of people with polish origin in my city, it's one of the biggest polish community in the world outside Poland. And there's a lot of ukrainians too, so the symbol of the city refer to slavs, is a stalk of wheat, together with a stalk of grape for the italians that have a big community here too.