The reign of Justinian (527–565 CE) was a period of significant legal activity: his administration produced two versions of the Justinian Code, the first in 529, and a second, revised version in 534. This code was designed to bring together all the laws that had been collected in earlier codes and those enacted since the last, the Theodosian Code of 438. In the process of compilation, obsolete or duplicate laws were removed, while the remaining laws were substantially edited. The Justinian Code remained in force in the Eastern Empire until the ninth century, while in the West it became influential in the twelfth century as the primary source of information about Roman law. The Justinian Code contains thirty-three laws relating to Jews. Additional laws are found in the Digest compiled in 533, which condensed and ordered the work of the Roman jurists, and in the Novels (new laws) of Justinian issued during his reign.