Three of the following were ways in which charlemagne advanced learning. which was not? a. he created a palace school. b. he brought scholars to live at his court. c. he wrote a history called "the decline and fall of the roman empire." d. he ordered monasteries to establish schools and libraries.

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Three of the following were ways in which Charlemagne advanced learning. Which was NOT?

He wrote a history called "The Decline and Fall of the Roman Empire."

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

question is unclear.

i can't sorry.

post the full question so i can .