What did john calvin discuss in his book

John Calvin is known for his influential Institutes of the Christian Religion (1536), which was the first systematic theological treatise of the reform movement. He stressed the doctrine of predestination, and his interpretations of Christian teachings, known as Calvinism, are characteristic of Reformed churches.

answer; i believe the correct answer is (the willamete valley);

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..