The answer to this problem is True ok!
Justinian's most important accomplishment was to order a review of the Roman law. This led to the publication of the Corpus Juris Civilis which was soon to be the most definitive codification of Roman Law.
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Proclamation of 1763, proclamation declared by the British crown at the end of the French and Indian War in North America, mainly intended to conciliate the Native American by checking the encroachment of settlers on their lands.
The rivers are the seine, rhone, and loire