一、匈奴冒顿单于统一我国北方的游牧区,是中国历史上具有进步意义的伟大事件。秦始皇吞并六国,结束了七国称雄的战国时代,统一了长城以内的农业区,在中国历史上是一个具有进步意义的伟大事件。秦末汉初,匈奴冒顿单于统一长城以外的游牧区,结束了诸游牧部落、部落联盟并立、纷争的局面,在中国历史上同样是一个具有进步意义的伟大事件。长城内外两个统一政权的先后出现,为尔后长城内外的大统一创造了前提条件。这是中国历史发展进程中的客观事实,都必须予以充分肯定。但是,长期以来在中国古代史研究上流行着一种历史的偏见:只承认秦朝统一长城以内农 First, Huns Mintao alone in unification of nomadic areas in northern China, is a great event of great progress in Chinese history. Qin Shihuang annexed the six countries, ending the warring states era dominated by the seven countries and unifying the agricultural areas within the Great Wall. It is a great event of great progress in Chinese history. In the late Qin Dynasty and early Han Dynasty, the Hun became a single great leader in the nomadic area beyond the Great Wall and ended the tribal alliance and clashes between nomadic tribes and tribes. It is also a great event of great progress in Chinese history. The emergence of two unified regimes both inside and outside the Great Wall has created the preconditions for the great unification of the Great Wall and beyond. This is an objective fact in the process of China’s historical development and must be fully affirmed. However, for a long time, there has been a historical prejudice prevailing in the study of ancient Chinese history: only recognition of the integration of the hinterland within the Great Wall by the Qin Dynasty