It started when the patriarch of Constantinople and partiarch of Rome excommunicated each other.
I believe Correlation is not causation" means that just because two things correlate does not necessarily mean that one causes the other. As a seasonal example, just because people in the UK tend to spend more in the shops when it's cold and less when it's hot doesn't mean cold weather causes frenzied high-street spending.
Answer:
double-blind procedures
Explanation:
double-blind procedures is research methodology in which both experimenter and participants is unaware of practicing exercise in experiments to avoid brassiness in results. It is mostly used in physiological and medication experiments.
Alexander was a very smart leader and a smart tactician and general, he was able to reconize the appeal and usefulness of elephants as war animals and how they could wreak havoc among enemies. He would use them to destroy and shattter enemy lines, causing panic and disarray among his enemies.
Leaders are chose by a popular vote in a democratic form of government. hope this helps, have an amazing day :)