Since I grew up and studied in Kuwait I learned that the body of water in that part of the world is called the Arabian Gulf. When I started reading books other than textbooks I found that it is also called the Persian Gulf. Years later, I found that there is actually a dispute between Iran and the Arabian Peninsula countries what to call that gulf.
Now, Iran is actually going mental about this dispute by forcing airlines to use the term Persian Gulf instead of Arabian Gulf or they will be banned from Iran’s airspace [source]. To be fair to both parties “last month the Saudi-based Islamic Solidarity Sports Federation said it canceled the Islamic Solidarity Games due to the Iranian host’s use of the ‘Persian Gulf’ term.” [same source]
Since I don’t know much about this issue I am not taking side with one party over the other. But I think that since Persians were there long time ago that body of water should be called Persian Gulf. But it is just an opinion.
But, I found it absurd to force the world to call you a name that not everyone agrees on. It is like when England forced the world at sometime in history to be called United Kingdom of Great Britain. Who call it Great Britain anymore?
Here is conversation from Seinfeld (The Maestro) that may help you understand the problem of naming:
JERRY So what about the “Maestro” stuff. Did he make you call him Maestro.
ELAINE Yeah, I called him Maestro.
JERRY You didn’t mind?
ELAINE Well, I did at first, but actually I kind of got used to it.
JERRY O.K. from now on I want you to call me “Jerry the Great”.
ELAINE I am not calling you “Jerry the Great”.
JERRY Why not you call him Maestro.
ELAINE He is a Maestro.
JERRY Well, I’m great.