Cai Yan living mainly in Jian years, Cource "indignant poem" After thirteen years as in the Jian.
蔡琰主要生活在建安年间，五言《悲愤诗》当作于建安十三年以后。
2
This is the first Cource of poetry in addition it is recognized that the profound in content of practical significance, as regards manifestations also very unique.