How did the Persians improve communication throughout their empire? They used carrier pigeons to send messages.
They built roads and invented a postal service.
They had fast runners relay messages over long distances.
They made their subjects use only one common language.

Which examines the impact of napoleon’s territorial conquest on the world?

Why were chinese american immigrants frequently detained when trying to immigrate through angel island? the rules for immigration were stricter at this checkpoint due to health issues that were prevalent among asian populations at this time. the location of the island was difficult to reach, and ships to the mainland were often prevented from sailing more than once a week. immigration agents were notorious for asking immigrants confusing questions as a means of denying them entry. low wages caused a shortage of immigration officials, so many immigrants had to wait weeks or months before their applications were processed.

Which number shows the location of the united kingdom of great britain?