When justinian 1 become emperor what the three things he set out to do during his reign

Justinian the GreatSaint JustinianJustinian IΜέγας ἸουστινιανόςAugustusDetail of a contemporary portrait mosaic in the Basilica of San Vitale, RavennaEmperor of the Byzantine EmpireReign1 August 527 – 14 November 565Coronation1 August 527PredecessorJustin ISuccessorJustin IIBorn. 482
Tauresium, Dardania[1] modern-day Taor, Republic of MacedoniaDied14 November 565 (aged 83)
of the Holy Apostles, Constantinople modern-day Istanbul, daughter Joan (adopted)Theodora (adopted)Full name Petrus SabbatiusRegnal nameImperator Caesar Flavius Petrus Sabbatius Iustinianus I (adoptive) ChristianitySaint Justinian the GreatEmperorVenerated inEastern Orthodox ChurchLutheran ChurchEastern CatholicismMajor shrine church of the Holy Apostles, Constantinople modern-day Istanbul, TurkeyFeast14 VestmentJustinian dynastyChronologyJustin I518–527Justinian I527–565Justin II565–578with Sophia and Tiberius as regents, 574–578Tiberius II578–582Maurice582–602with Theodosius as co-emperor, 590–602SuccessionPreceded by
Leonid dynasty followed by
Phocas and the Heraclian dynasty

Justinian I (/dʒʌˈstɪniən/; Latin: Flavius Petrus Sabbatius Iustinianus Augustus; Greek: Φλάβιος Πέτρος Σαββάτιος Ἰουστινιανός Flávios Pétros Sabbátios Ioustinianós; c.482 – 14 November 565), traditionally known as Justinian the Great and also Saint Justinian the Great in the Eastern Orthodox Church,[2][3] was the Eastern Roman emperor from 527 to 565. During his reign, Justinian sought to revive the Empire's greatness and reconquer the lost western half of the historical Roman Empire.