Question: When did Christianity become the official religion of the empire that reduced to a colony in the 1st century the place where Marawen died?

<P0-S0> of the new eastern religions introduced into the greek world, the most successful was christianity. <P0-S1> from the early centuries of the common era, the greeks identified as romaioi ("romans"), by that time the name ‘hellenes’ denoted pagans. <P0-S2> while ethnic distinctions still existed in the roman empire, they became secondary to religious considerations and the renewed empire used christianity as a tool to support its cohesion and promoted a robust roman national identity. <P0-S3> concurrently the secular, urban civilization of late antiquity survived in the eastern mediterranean along with greco-roman educational system, although it was from christianity that the culture's essential values were drawn. <SEP> <P1-S0> The emperor became a great patron of the Church and set a precedent for the position of the Christian emperor within the Church and the notion of orthodoxy, Christendom, ecumenical councils, and the state church of the Roman Empire declared by edict in 380. <P1-S1> Constantine's decision to cease the persecution of Christians in the Roman Empire was a turning point for early Christianity, sometimes referred to as the Triumph of the Church, the Peace of the Church or the Constantinian shift. <P1-S2> In 313, Constantine and Licinius issued the Edict of Milan decriminalizing Christian worship. <P1-S3> He is revered as a saint and isapostolos in the Eastern Orthodox Church, Oriental Orthodox Church, and various Eastern Catholic Churches for his example as a ``Christian monarch. '' <SEP> <P2-S0> The death of Cleopatra ended the nominal independence of Egypt resulting in Egypt becoming one of the provinces of the Roman Empire. <P2-S1> In 332 BC, Macedonian ruler Alexander the Great conquered Egypt as he toppled the Achaemenids and established the Hellenistic Ptolemaic Kingdom, whose first ruler was one of Alexander's former generals, Ptolemy I Soter. <P2-S2> The Ptolemies had to fight native rebellions and were involved in foreign and civil wars that led to the decline of the kingdom and its final annexation by Rome. <SEP> <P3-S0> kepoi or cepoi (ancient greek: κῆποι, russian: кепы) was an ancient greek colony situated on the taman peninsula, three kilometres to the east of phanagoria, in the present-day krasnodar krai of russia. <P3-S1> the colony was established by the milesians in the 6th century bc. <P3-S2> in the hellenistic period, it was controlled by the kings of the cimmerian bosporus, who (according to aeschines) made a present of a place called "the gardens" to gylon, the grandfather of demosthenes. <P3-S3> the town reached its peak in the 1st centuries ad, but the huns and goths put an end to its prosperity in the 4th century. <P3-S4> soviet excavations, started in 1957, yielded rich finds, including a marble statue of a greek goddess ("aphrodite of taman"). <P3-S5> more than 400 burials were explored at kepoi in the 1960s and 1970s; the rest of the site has been submerged by the sea of azov. <SEP> <P4-S0> Around 746, Abu Muslim assumed leadership of the Hashimiyya in Khurasan. <P4-S1> In 747, he successfully initiated an open revolt against Umayyad rule, which was carried out under the sign of the black flag. <P4-S2> Damascus fell to the Abbasids in April, and in August, Marwan was killed in Egypt. <P4-S3> He soon established control of Khurasan, expelling its Umayyad governor, Nasr ibn Sayyar, and dispatched an army westwards. <P4-S4> Kufa fell to the Hashimiyya in 749, the last Umayyad stronghold in Iraq, Wasit, was placed under siege, and in November of the same year Abu al-Abbas was recognized as the new caliph in the mosque at Kufa. <P4-S5> [citation needed] At this point Marwan mobilized his troops from Harran and advanced toward Iraq. <P4-S6> In January 750 the two forces met in the Battle of the Zab, and the Umayyads were defeated.