东北边疆指从山海关到黑龙江流域,是一个多民族居住的地区。生活在东北边疆的各民族在生活习性乃至信仰方面有很多相同之处,在经过了肃慎、东胡、穢貊这三个具有明显特征的种族后,分裂形成各个部落民族,并逐渐同汉族融合走向汉化。一、肃慎及其分支发展最早见于文献记载的民族是肃慎,也写作息慎、稷慎。商周时 The Northeast Frontier refers to the Heilongjiang Valley from Shanhaiguan and is a multi-ethnic area. The ethnic groups living in the northeastern frontier have many similarities in terms of their habits and beliefs. After passing through three distinctive ethnic groups, namely, Caution, East Hu and Filial Piety, the tribal peoples have been divided and gradually merged with the Han nationality To Chinese. First, the development of Sushen and its branches The earliest seen in the literature of the nation is a prudential, but also write carefully, Ji Shen. Business week