What role did civil service exams play in shaping han china

The civil service exams were based on ones ability, not an inherited social standing. This allowed intelligent people to play roles in their government and  thus created a better governmental body to rule China.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

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