If the change in values of one set doesn't affect the values of the other, then the variables are said to have "no correlation" or "zero correlation." A causal relation between two events exists if the occurrence of the first causes the other.
Answer:
Learning and trade thrived in the Byzantine Empire. As you read in a previous chapter, Emperor Constantine ended the persecution of Christians, and Emperor Theodosius made Christianity the official state religion of the Roman Empire. Christianity had a major influence on the Byzantine Empire
Explanation:
The Open Door Notes - sent by U.S. Secretary of State John Hay in 1899 to open up Chinese ports to American merchants. European powers had "spheres of influence" in different port cities throughout China, and the United States wanted access to China's markets.
Americas: establishments of plantations drew Africa and slavery into the heart of the transatlantic economy.
