C. “Tourism” people aren’t really touring in the early civilizations. All the other answers are correlated with the spread of disease.
Émile Zola is the correct answer, I hope this helps!!
I need help with this answer too
Answer:C it helped unite them
Answer:
Chronological thinking
Explanation:
A historian who is trying to understand the events that led up to the terrorist attacks on New York City's World Trade Center on September 11, 2001 constructs a timeline showing the order in which each event happened.
The skill the historian is using is Chronological thinking because he is trying to piece the events together with a timeline