Focal Points Northern Ireland and the Republic of Ireland the natural environment ·the Celts the Coming of Christianity the English Colonization the Great Famine of 1845-1848 Campaigns for Home Rule ·Easter Rising of19l6 Irish Independence in 1921Focal Points • Northern Ireland and the Republic of Ireland • the natural environment • the Celts • the Coming of Christianity • the English Colonization • the Great Famine of 1845-1848 • Campaigns for Home Rule • Easter Rising of 1916 • Irish Independence in 1921