Answer:President Abraham Lincoln issued the Emancipation Proclamation on January 1, 1863, as the nation approached its third year of bloody civil war. The proclamation declared "that all persons held as slaves" within the rebellious states "are, and henceforward shall be free."Apr 17, 2019
Explanation:
Indoor electric lamps, telephones, electric steelcars, and automobiles.
Social Psychology is the systematic study of the ways interaction, interdependence and influence among persons affect their behavior and thoughts.
Industrial Psychology is a branch of psychology which understands individuals at their workplace and how the theoretical principles of psychology can be applied.
Anthropology is the scientific study of man and his proceedings.
Sociology is the scientific study of social behavior or society.
Han in the Xiongnu were several of the battles from "133 BC to 89 AD". During the reign of the WU emperor where the Han Chinese won over the Xiongnu, before these battles the Xiongnu were a nomadic group that reigned in modern Mongolia.
During these battles political instability was generated, producing that the state of Xiongnu was divided in 2 parts and had crisis of successions, having massive revelations between its towns the Wusun, Wuhuan and Dingling.
In 60 BC Han China established the protectorate in the western regions beginning the decline of the Xiongnu reign.
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That they were called the border ruffians
