To understand the causal relationship between historical events and historical results, the following methods are needed: 1. Understand the historical background and environment. Understanding the political, economic, cultural and social environment at that time is helpful to understand the emergence and development of historical events and results. 2. Grasp the process of historical events. By understanding the background, influence and participants of historical events, we can understand the occurrence process of events more comprehensively and deeply. 3. Analyze the causes and motives of historical events. There are many reasons for historical events, and we can understand them by analyzing political, economic and cultural factors. 4. Analyze the influence and consequences of historical results. The results of history often have far-reaching effects and consequences on society, politics and culture, and we need to analyze and understand these effects and consequences. 5. Compare and contrast. By comparing and contrasting historical events and results, we can grasp the causal relationship more accurately and explore the relationship between events and results. 6. Improve historical literacy. By learning historical knowledge and methods and improving historical literacy, we can better understand the causal relationship between historical events and results.