Here are the key elements I identified in the document: - The document provides guidance on how to write effective history essays, including outlining the structure and components of a strong essay. - It emphasizes that history essays should be analytical rather than just narratives, exploring causes, impacts, relationships between concepts and events. The essay should have a clear argument and line of reasoning to answer the given question. - Key components discussed include having a clear introduction with a thesis statement, using topic and link sentences to structure paragraphs coherently, citing evidence and explanations, and concluding by restating the thesis. The overall 'controlling idea' seemed to be providing instructions on how to write a high-quality analytical history essay that