" Free State was born "
The Irish Free State was founded on 6 Decemer 1922, following the signing of the Anglo-Irish Treaty by the British government and Irish representatives the previous year. The state comprised the whole island but Northern Ireland (the 6 counties of Ulster) immediately exercised its right to opt out. The Irish Free State replaced the Irish Republic, established on 21 January 1919.
" and the Civil War "
The Irish Civil War was the conflict that led to the founding of the Irish Free State. Two opposing groups of Irish Nationalists fought: the Provisional Government that established the Free State and backed the Anglo-Irish Treaty, and the Republicans, who believed the Treaty betrayed the Irish Republic. The war was won by the Free State forces.