How do the details in this timeline support the authors’ purpose?

The details about the shift of power in France help persuade readers that France was important to the sugar industry.
The details about the changing laws in France help inform readers that Napoleon wanted to produce sugar cheaply by using enslaved people.
The details about the French Revolution help inform readers about the process of executing enemies.
The details about Marie Antoinette help persuade readers that the French royalty were not well liked.