"The Easter Rising (Irish: Éirí Amach na Cásca), also known as the Easter Rebellion and referred to erroneously in some contemporary British reports as the Sinn Féin Rebellion, was an armed insurrection staged in Ireland during Easter Week, 1916. The Rising was mounted by Irish republicans with the aims of ending British rule in Ireland and establishing an independent Irish Republic at a time when the United Kingdom was heavily engaged in World War I. It was the most significant uprising in Ireland since the rebellion of 1798."--Wikipedia.