1, from the positive and negative aspects: the role of historical events can be divided into positive and negative aspects. And meaning generally only talks about positive meaning.

For example: analyze the role and significance of Tokyo trial after World War II;

Positive effects: Japanese war criminals have been duly punished and justice has been done.

Negative effects: Some war criminals are exempted from prosecution and the punishment is not thorough, which is the root of the resurgence of Japanese militarism.

Significance: Punish war criminals and uphold justice.

2. From the depth of logical relationship, the role of historical events generally only analyzes the direct role. And meaning has direct and long-term significance.