Actually no.
English only became the "international" language since the mid XX century.
French was the most common language until late XIX century, being the
used language in diplomacy, whereas Portuguese and Spanish were the
most common in the XVI, XVII centuries when they dominated the globe.
It was only after WWII, and mostly because of hollywood movies and
American TV shows that the American culture became dominant (one could
say hegemonic) in the world.
So yes, you can say that English is the language one should talk to
get known worldwide, you're not right in saying it's always been like
that (nor that it will be like so forever).
But, as a provocation to all Americans out there: this discussion only
makes sense amongst Americans. Europeans travel 300 miles and cross 3
countries with 3 different languages. We* listen to different
languages and try to communicate. Most Europeans speak at least 1
foreign language (either English, French, German or Russian), a lot of
them speak 2. And some others speak even more. I speak 2 foreign
languages well (French and English), also a bit of Spanish and Italian
and I'd like to start learning German. Only amongst Americans one can
complain about having to read in a foreign language.
* when I say we, I mean Europeans except French and Spanish; those
guys can't understand a word in any language except their own! ;)
Ok, start the flame war!!! :))))
Cheers,
Nelson