Due to the panegyrical nature of Procopius's "Buildings", historians have discovered several discrepancies between claims made by Procopius and accounts in other primary sources. A prime example is Procopius's starting the reign of Justinian in 518, which was actually the start of the reign of his uncle and predecessor By treating the uncle's reign as part of his nephew's, Procopius was able to credit Justinian with buildings erected or begun under Justin's administration. Such works include renovation of the walls of Edessa after its 525 flood and consecration of several churches in the region. Similarly, Procopius falsely credits Justinian for the extensive refortification of the cities of Tomis and Histria in Scythia Minor. This had actually been carried out under who reigned before Justin.