The United Stastes of
Sure but it is saying that there are states in union of the american continent, it would be like if there where United states of Europe, that would mean states in union of the european continent, not that that country is called Europe. I understand you learnt it differently but did you actually understood what it says in the link you posted. Let me quote it again.
_The Americas, or America
, are lands in the Western hemisphere, also known as the New World. <--- here is where it says it's a continent.In the English language
, the Americas refers to the landmasses of North America and South America with their associated islands and regions, whereas America, in current usage, usually refers to the United States of America._ * <--- here is where it explains this is only for English speaking countries, not for the rest of the world*
But I understand you see this different as I see it, we learnt it different at school and there is another issue because of our native language. So no one is wrong here.