<p>For my common app essay, I wrote a pretty unique piece on my nationality but since it's such a broad topic and touched on so often in the supplements would it be a good idea to go into it again ?</p>
<p>No, that wouldn’t be a good idea, other than maybe a few remarks. They provide extra essay prompts in the supplement so they can get a better idea of who you are, not so you can reiterate who the commonapp says you are.</p>