Timeline: History of Ireland | Timetoast

Apr 17, 1916

1916 Easter Uprising

Easter Rising: The Irish Republican Brotherhood led an action which seized key government buildings in Dublin, and issued the Proclamation of the Irish Republic. http://www.bbc.com/news/uk-northern-ireland-35873316
Apr 24, 1916

The leaders of the uprising order their men to surrender

https://en.wikipedia.org/wiki/Timeline_of_Irish_history
Dec 7, 1921

The Constitution of Ireland comes into force replacing the Irish Free State with a new state called "'Éire', or, in the English language, 'Ireland'"

https://en.wikipedia.org/wiki/Timeline_of_Irish_history