He becomes interested in ensuring ....
Answer: Dynamite
Explanation: Dynamite is an object
We came;we saw;we conquered
I think the term is the "effect." Like cause and effect
I think the best similarities of the two of them is that both writers wrote about things and events that are going on in their country and the comparison of them is that American writer wrote about war, racism and slavery, and politics in a current time while European writer are all about religions. I hope this would help