Just went into a city that was fairly new and didnt have many titles (maybe two or three extra from buying them + what you get when you build them)
Went with the great artist, pressed culture bomb and ....nothing, not even one more title
wth?
a culture bomb turn the tile that the artist is in to yours, plus 1 tile all around him. so if you do it in a city that's already yours, nothing will happen. It's in the manual.
Some people gotta learn through trial and error.
But in all honesty if you came to the forums to ask about this, why didn't you go to the manual first?
Incidentally, I found yesterday that you can ignite the Culture Bomb whilst embarked (i.E., your GP is 'sailing'). Turned out to be extremely useful in that case...
I don't think this is true, based on my experience.It doesn't have to be anywhere near your current borders!