 Around the time of publication Yang Weizhen stated that only the Song was a legitimate dynasty and the Liao and Jin were usurpers.He continued to argue this point and composed an essay titled 'On legitimate Succession' 正統辯.Ming scholar Wang Zhu 王洙 wrote an alterative history of the Song titled "Verified History of the Song" 宋史質 in which the Liao and Jin states were relegated to treatises on foreign states.