一、为什么要对 2 0世纪世界历史进行整体研究 ?这是一个历史观和方法论问题。有什么样的历史观 ,就有什么样的方法论。历史观就是对 2 0世纪世界历史的历史认识 ,即怎样认识 2 0世纪世界历史 ,它的前提是弄清 2 0世纪世界历史从何而来。马克思对世界历史的由来作过明确论断 , First, why should we conduct an overall study of the world history in the 20th century? This is a question of history and methodology. What kind of view of history, there is what kind of methodology. The concept of history is the historical understanding of the world history in the 20th century. How to understand the history of the world in the 20th century? The premise is to find out where the world history in the 20th century came from. Marx made a clear conclusion on the origin of world history,