What was the silk road?
a. a thousand-year-old trading network that linked eurasia
b. a trade route in which only silk was exchanged
c. a trade route controlled by the europeans
d. the route of exploration that marco polo took

a. a thousand-year-old trading network that linked eurasia

Explanation:

- "the past is made of multitudinous items ranging from anything that can be collected, recollected or assessed to originate in the past. as such, the past is a gallimaufry of particulars that may not have been related in any way. however, the human mind seeks organization to understand concepts and other things. the human mind therefore seeks relationships in explaining and studying the past. history being a humanity, dictates that historians have to serve this human trait by bringing structure to details of the past. historians do this by creating interpretive frameworks that capture as many details as possible."

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the soviet union wanted to impose communist governments in eastern europe.