Answer: The emperor's role was to enforce doctrine, root out heresy, and uphold ecclesiastical unity. Both the title and connection between Emperor and Church continued in the Eastern Roman Empire throughout the medieval period (in exile during 1204–1261).
Explanation: Hope this helps
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The approach which allows the decisions of various eras to result in a long-lasting impact on the present scenario is the historical research approach.
<h3>What is meant by research?</h3>
Research is the process to find out information and knowledge about any topic or concept from every possible source.
Historical research is a qualitative approach that focuses on identifying the events that happened in ancient times and interpreting the facts and reasons for their occurrence. This study helps in analyzing the impacts of past events on the current scenario.
Therefore, the historical research approach is the one that allows us to study the impacts of different eras on the present lives.
Learn more about the research in the related link:
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<span>a progressive Republican social reform</span>
<span>There were global consequences for WWI, because it included more countries than any previous war, it also resulted on more deaths than any previous war. WWI caused the decay of monarchies and rise of fascism. WWI also changed the face of modern warfare by implementing tanks, submarines, airplane-dropped bombs, machine guns, and poison gas.</span>
