Answer:
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After the unification of China in the beginning of the Qin Dynasty, China's First Emperor, Qin Shihuang, linked the walls of the three northern states (Qin, Zhao, and Yan).
Supreme Power or Authority.
Explanation:
The labor market changed radically. Peacetime conflicts concerning race and labor took on a special dimension because of the pressure for national unity. The Hollywood film industry was important for propaganda. Every aspect of life from politics to personal savings changed when put on a wartime footing. This was achieved by tens of millions of workers moving from low to high productivity jobs in industrial centers. Millions of students, retirees, housewives, and unemployed moved into the active labor force. The hours they had to work increased dramatically as the time for leisure activities declined sharply.
