I heard the story for the question of

"Who set up Toudaizi-temple ?"

there was the teacher who gave the answer.

Unconsciously I believed that the person was a converted ex-leftist activist (just prejudice) or intercollegiate loser ex-rightist (terrible prejudice).

Above and beyond this.

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I don't think that this answer could be wrong, however, in general "history" means "history" of "policymakers" and "wars". So this answer is not proper.

Above all, if the person wanted to derive this answer, he/she should give their student

"What kinds of technical problem were in building technology"

"What kinds of novel and invective invention were generated"

"What kinds of affect were given in in building technology history"

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In this case, the answer of "carpenters" means,

"Any building structure could be set up, if a power orders it"

"A naughty attitude towards technology and engineers could be observed"

I feel unpleasant.