It's portuguese as Brasil with s not z (nobody says SUA instead of USA do they? So why change the name of the country)
Why do the Germans spell "Canada" with a "K" and why don't Canadians call Germany "Deutschland"?
Why do Spanish speakers spell it "Zimbabue" instead of "Zimbabwe?"
Why does nobody call China "The Middle Kingdom" or "Zhongguo" or "中国"?
Who don't westerners spell "Saudi Arabia" as "المملكة العربية السعودية"?
Why do boys like blue but girls like pink, and yet there are exceptions?
Ach! The mysteries of the world!!!