Answer:
Thucydides, (born 460 bc or earlier? —died after 404 bc?), greatest of ancient Greek historians and author of the History of the Peloponnesian War, which recounts the struggle between Athens and Sparta in the 5th century bc. His work was the first recorded political and moral analysis of a nation's war policies.
Explanation: I hope this helps!!
They chipped away at the number of jobs in heavy industry
Because the constitution exists for the sole purpose of preserving the country as a whole something that secession wouldn't do