Because it tells about an important time in history and gives us information about how some of the Jews had to live in this time.
Explanation:
Without question, you should avoid sentence fragments in formal situations and academic writing. That said, a fragment within a clear context can sometimes serve a valid dramatic purpose. Journalists, bloggers, and fiction writers often use them.
Dramatic irony is when the audience are aware of something, but the characters don't. For example, In Shakespeare's <em>Macbeth, </em>Duncan is talking about how Macbeth is so great. We know that Macbeth is actually planning to kill Duncan, but Duncan himself doesn't know this.
