Slavery led to sectionalism in the United States and pushed the country to the brink of war.
Answer:
D, B
Explanation:
William Harvey was the first person to make claims against the Catholic Church in terms of the capabilities of priests to heal the human body.
Newton was someone who showed that the world was something that humans could understand unlike what was accepted in the past about the world being something incomprehensible to humans because God created it. I'm still not quite sure about this one though if you think you have a better answer then use that one.
Goodnight and Loving drove thousands of cattle north to the reservation to sell cattle to the starving Indians for a huge profit. This was the beginning of Goodnight's incredibly profitable cattle career. The Goodnight-Loving Trail was a cattle trail from Texas to the new populations in the West.
No taxation without representation
hope this helped