What steps did the first emperor of a united china to unify the country

He order the building the Great Wall and standardized system of weights and measures. He also ended the feudal state system and reorganized China into states and counties under a central  government. He connected all the walls along the northern border. He also supported the irrigation system along the Yangtze Valley, helping to support the Chinese people. Additionally, Confucian thought that a country can be successfully governed only if the government has the support of the people.

They built the Great Wall and standardized system of weights and measures.

answer; i believe the two groups were irish immigrants and chinese immigrants;