Moreover, in compiling seishi the most common sources are the records left by the chroniclers of the preceding dynasty, and it is likely that these records were edited as they were often written in order to excise anything that reflected poorly on the dynasty and can exaggerate the dynasty's good points.
また正史をまとめるに当たり、最も参考にするのは前王朝の史官が残した記録であるので、その時点で都合の悪い所が消されていたり、粉飾されていたりする場合もあり得る。