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What kind os source would a historian use to get a firsthand account of a past event

Identify one specific example of how the enlightenment characterized a change in economic thought from the past

Which best explains how wealthy residents of italian cities contributed to the renaissance? a) wealthy residents bought works of art, which supported artists. b) wealthy residents participated in religion, which supported the church c) wealthy residents participated in music, which supported the arts. d) wealthy residents bought classical books, which supported scholars.