Answer:
Harriet Beecher Stowe
Explanation:She made it to show the effects of attitude to slavery with african americans
The top dogs were Peninsulares. They were Spaniards born in Spain.
Second are the Creoles, (Europeans+African Americans/Africans=Creole). The third were the Mestizos & Mulattoes. Mestizos;Native Americans mixed w/ Spaniards & Mulattoes were White & Black).
At the very bottom of the Spanish social class were Native Americans & slaves.
I think this would be antibiotics