It is primary because it is the official process of methodically collecting information about a certain topic in a specific time period
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i don't understand your question all so if your late start earlier!
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Answer:Tsar Alexander II initiated a series of important reforms in Russia. During his reign, the country's rail and communication networks were improved, resulting in increased economic activity and the development of banking institutions.
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Answer:
The Texas Rangers pushed all Native Americans out of Texas and onto reservations, today known as Oklahoma.
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