I don't have enough information to specifically say who Roman Coleman is in this 'true story'. It could be an ordinary person with a unique experience, or perhaps someone who has made an impact in a particular field but is not widely known outside of the context of this story.
Cleopatra was a queen of Egypt. She was known for her relationships with Roman leaders. She was intelligent and used her charm and political acumen to try to preserve Egypt's independence. For example, her alliance with Julius Caesar was a way to strengthen her position against her rivals in Egypt and also against the Roman influence in general.
Cleopatra fiction has made her into an iconic figure. The fictional portrayals have often emphasized her beauty and charm, which has led to the modern perception of her as a seductive and alluring woman. For instance, in many movies and novels, she is depicted as using her feminine wiles to influence the powerful Roman men in her life.
Well, Coleman science fiction might often feature advanced technological concepts. It could have unique alien species with their own cultures. For example, the stories might explore the implications of time travel or faster - than - light travel.
I'm not sure specifically as I haven't read it. It could be about a place called Coleman Hill and the events, characters, and stories that unfold there.