Question: When did Christianity become the official religion of the empire that conquered the country where the industrial revolution would start?

<P0-S0> early modern europe is the period of european history between the end of the middle ages and the beginning of the industrial revolution, roughly the late 15th century to the late 18th century. <P0-S1> historians variously mark the beginning of the early modern period with the invention of moveable type printing in the 1450s, the fall of constantinople in 1453, the end of the wars of the roses in 1487, the beginning of the high renaissance in italy in the 1490s, the end of the reconquista and subsequent voyages of christopher columbus to the americas in 1492, or the start of the protestant reformation in 1517. the precise dates of its end point also vary and are usually linked with either the start of the french revolution in 1789 or with the more vaguely defined beginning of the industrial revolution in late 18th century england. <SEP> <P1-S0> Hiberni (Ireland), Pictish (northern Britain) and Britons (southern Britain) tribes, all speaking Insular Celtic, inhabited the islands at the beginning of the 1st millennium AD. <P1-S1> Much of Brittonic-controlled Britain was conquered by the Roman Empire from AD 43. <P1-S2> The first Anglo-Saxons arrived as Roman power waned in the 5th century and eventually dominated the bulk of what is now England. <P1-S3> Viking invasions began in the 9th century, followed by more permanent settlements and political change—particularly in England. <P1-S4> The subsequent Norman conquest of England in 1066 and the later Angevin partial conquest of Ireland from 1169 led to the imposition of a new Norman ruling elite across much of Britain and parts of Ireland. <P1-S5> By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland, while control in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland, soon restricted only to The Pale. <P1-S6> The 1603 Union of the Crowns, Acts of Union 1707 and Acts of Union 1800 attempted to consolidate Britain and Ireland into a single political unit, the United Kingdom of Great Britain and Ireland, with the Isle of Man and the Channel Islands remaining as Crown Dependencies. <P1-S7> The expansion of the British Empire and migrations following the Irish Famine and Highland Clearances resulted in the distribution of the islands' population and culture throughout the world and a rapid de-population of Ireland in the second half of the 19th century. <P1-S8> Most of Ireland seceded from the United Kingdom after the Irish War of Independence and the subsequent Anglo-Irish Treaty (1919–1922), with six counties remaining in the UK as Northern Ireland. <SEP> <P2-S0> The precise start and end of the Industrial Revolution is still debated among historians, as is the pace of economic and social changes. <P2-S1> Eric Hobsbawm held that the Industrial Revolution began in Britain in the 1780s and was not fully felt until the 1830s or 1840s, while T.S. <P2-S2> Ashton held that it occurred roughly between 1760 and 1830. <P2-S3> Rapid industrialization first began in Britain, starting with mechanized spinning in the 1780s, with high rates of growth in steam power and iron production occurring after 1800. <P2-S4> Mechanized textile production spread from Great Britain to continental Europe and the United States in the early 19th century, with important centres of textiles, iron and coal emerging in Belgium and the United States and later textiles in France. <SEP> <P3-S0> during this period, europe, north africa and the near east fell under increasing domination by the roman empire, which continued expanding, most notably conquering britain under the emperor claudius (ad 43). <P3-S1> the reforms introduced by augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. <P3-S2> later in the century the julio - claudian dynasty, which had been founded by augustus, came to an end with the suicide of nero in ad 68. there followed the famous year of four emperors, a brief period of civil war and instability, which was finally brought to an end by vespasian, ninth roman emperor, and founder of the flavian dynasty. <P3-S3> the roman empire generally experienced a period of prosperity and dominance in this period and the first century is remembered as part of the empire's golden age. <SEP> <P4-S0> 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. <P4-S1> In 313, Constantine and Licinius issued the Edict of Milan decriminalizing Christian worship. <P4-S2> 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. <P4-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. 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