Who are the legions of the concerned and committed that Nixon refers to

American citizens.

Explanation:

The phrase "the legions of the concerned and committed" is part of Nixon's first speech as president of the republic. He uses this phrase to refer to American citizens who are essential to the country's political, economic and social progress, along with all the rulers, including the president. That's because American citizens were people concerned about their homeland and committed to its success. With that, he reaffirms the need to work together with the people, to be a good president.

umm i have no idea what that is good luck : )

a-he encouraged islamic schools to introduce greek texts.

d-he invited greek scholars to teach their texts to the locals.

explanation:

the transmission of the greek classics to latin western europe during the middle ages was a key factor in the development of intellectual life in western europe.[1] interest in greek texts and their availability was scarce in the latin west during the earlier middle ages, but as traffic to the east increased so did western scholarship.

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