What would lead a historian to consider two events to have a relationship of correlation rather than causation?

could you use this to with a topic?

the key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications for minority rights. both forms of government tend to use a representational system — i.e., citizens vote to elect politicians to represent their interests and form the government.

answer; the period of time known as the middle ages;

wait history, who want to talk about history, boring.