The answer is: Runners allowed villages and cities throughout the empire to communicate quick with rulers far away.
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A is the correct answer because in older times religions were also spread by that method
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Yes staff members work directly for the congress
The Pacific Railroad<span> Act chartered the Central Pacific and the Union Pacific </span>Railroad<span>Companies, and tasked them with building a </span>transcontinental railroad<span> that would link the United States from east to west. ... This affected the Native Americans in a negative way because the Native Americans used buffalo for many things.</span>