历史学家必须完成的最重要、但也是最具争议的任务之一，是在回顾历史事实后权衡证据。历史学家根据许多不同的证据作出决定。他们决定每一个证据对历史的发展有多重要。这就提出了这样一个问题:历史学家对历史事件的证据的衡量在多大程度上是主观的或客观的。对证据的权衡往往是主观的，因为历史上某些事件的原因往往多种多样。这可以从对几乎所有有记载的历史事件的分析中看出，尤其是在对第二次世界大战起因的分析中。许多不同的因素导致了第二次世界大战。在美国和英国等国实施的经济制裁、大国之间的政治紧张、意大利、德国和日本的扩张主义外交政策之间，没有一个单一的原因可以被看作是唯一开始战争的原因。然而，决定哪一个原因对战争影响最大，是历史学家争论和权衡的问题，然而他们往往得出不同的结论。
英国留学生论文代写:历史学家争论
One of the most important, yet most debatable, tasks that a historian must complete is weighing evidence after reviewing historical facts. Historians make decisions based on many different pieces of evidence. They decide how important each piece of evidence is to the way that history played out. This brings up the question of the extent to which the weighing of evidence by historians in relation to events in history is subjective or objective. The weighing of evidence tends to be subjective simply because of the often multiple different causes of certain events in history.This can be seen in the analysis of almost every historical event in recorded history, but especially in the analysis of the cause of World War II. Many different factors played into the cause of World War II. Between the economic sanctions imposed by countries such as the United States and Great Britain, political tension between the major powers, or expansionist foreign policies of Italy, Germany, and Japan, no single cause can be seen as the only one to start to war (History.com staff). However, deciding which cause had the greatest impact on war is what historians debate over and weigh evidence over, yet they often come to separate conclusions.
