<P> The 1614 overthrow of the Catholic majority in the Irish Parliament was realised principally through the creation of numerous new boroughs which were dominated by the new settlers . By the end of the seventeenth century , recusants ( adherents to the older religion were now termed ) , representing some 85 % of Ireland 's population , were then banned from the Irish Parliament . Protestant domination of Ireland was confirmed after two periods of war between Catholics and Protestants in 1641 - 52 and 1689 - 91 . Political power thereafter rested entirely in the hands of a Protestant Ascendancy minority , while Catholics and members of dissenting Protestant denominations suffered severe political and economic privations under the Penal Laws . The Irish Parliament was abolished from 1 January 1801 in the wake of the republican United Irishmen Rebellion and Ireland became an integral part of a new United Kingdom of Great Britain and Ireland under the provisions of the Acts of Union 1800 . Although promised a repeal of the Test Act , Catholics were not granted full rights until Catholic Emancipation was attained throughout the new UK in 1829 . This was followed by the first Irish Reform Act 1832 , a principal condition of which was the removal of the poorer Irish freeholders from the franchise . </P>
<P> The 1614 overthrow of the Catholic majority in the Irish Parliament was realised principally through the creation of numerous new boroughs which were dominated by the new settlers . By the end of the seventeenth century , recusants ( adherents to the older religion were now termed ) , representing some 85 % of Ireland 's population , were then banned from the Irish Parliament . Protestant domination of Ireland was confirmed after two periods of war between Catholics and Protestants in 1641 - 52 and 1689 - 91 . Political power thereafter rested entirely in the hands of a Protestant Ascendancy minority , while Catholics and members of dissenting Protestant denominations suffered severe political and economic privations under the Penal Laws . The Irish Parliament was abolished from 1 January 1801 in the wake of the republican United Irishmen Rebellion and Ireland became an integral part of a new United Kingdom of Great Britain and Ireland under the provisions of the Acts of Union 1800 . Although promised a repeal of the Test Act , Catholics were not granted full rights until Catholic Emancipation was attained throughout the new UK in 1829 . This was followed by the first Irish Reform Act 1832 , a principal condition of which was the removal of the poorer Irish freeholders from the franchise . </P>
when did ireland become part of the uk
when did ireland become part of the uk
1 January 1801
1 January 1801