Partition of Ireland
The partition of Ireland () divided the island of Ireland into two distinct jurisdictions, Northern Ireland and Southern Ireland. It took place on 3 May 1921 under the Government of Ireland Act 1920. Today the former is still known as Northern Ireland and forms part of the United Kingdom, while the latter is now a sovereign state also named Ireland and sometimes called the Republic of Ireland.
Partition of Ireland
The Government of Ireland Act 1920, which came into effect on 3 May 1921, provided for separate self-governing parliaments for Northern Ireland (the six northeastern counties) and Southern Ireland (the rest of the island), thus partitioning Ireland. While the parliament and governmental institutions for Northern Ireland were soon established, the election in the 26 counties returned an overwhelming majority of members giving their allegiance to Dáil Éireann and supporting the republican effort in the Irish War of Independence, thus rendering "Southern Ireland" dead in the water.