Which document established the principle of devolution in Northern Ireland?

The Good Friday Agreement is pivotal in establishing the principle of devolution in Northern Ireland. Signed in 1998, it set out a framework for the governance of Northern Ireland that included the establishment of the Northern Ireland Assembly and the power-sharing arrangement between unionists and nationalists. This agreement aimed to address the longstanding issues of conflict and division in the region, paving the way for a devolved government that allowed local decision-making on various matters.

The Good Friday Agreement not only facilitated the creation of the assembly but also outlined mechanisms for cooperation across different sectors and a commitment to democratic governance, human rights, and the promotion of reconciliation. Its significance lies in the fact that it represented a collective decision by the people of Northern Ireland, fostering a new political landscape that moving towards peace and stability through shared governance.

In contrast, while the Act of Union, Magna Carta, and The Act of Union played significant roles in the historical and political context of Northern Ireland and the UK, they do not specifically relate to the establishment of devolution as outlined in the principles set forth in the Good Friday Agreement.