ANSWER : inform
The primary purpose of the prologue in Sugar Changed the World is to inform the reader about the impact of sugar on world events and culture. First, the text introduces the history of sugar production and indicates that it led to slavery.
There were three people who refused to help him. These people were his personal servant. The second one is a soldier called Dardanius and lastly, his friend Voluminius, one of his fellow conspirator who wishes to overthrow Caesar.