How did a network of roads maintain peace and unity in the Persian empire?

The persain empire was so vast the road connected in different location. they made trade easier and allowed government offices to travel between cities to collect taxes

was it helpful?

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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