All I can remember back to is King William and King James in the Battle of the Boyne in 1690.
In 1798 the United Irishmen led a substantial rebellion against Britain for the hope of securing independence, led by Wolfe Tone, who later became a martyr after commiting suicide in jail. It ceased at Vinegar Hill. In 1800 the Act of Union was signed, which was a deceptive measure that failed to live up to the Catholic demands for emancipation on the basis of the protestant British king. It was the turning point for Irish nationalism, arguably. Daniel O' Connell was a barrister that stood for election at County Clare, after setting up the Catholic Association which was the most effective organisation in Irish history, uniting a substantial majority of Catholics and Presbyterians in Ireland for Catholic rights and equality (his 1p rent was used later in many different ways). Wellington and Peel were forced to pass it on the basis of further rebellion and 'brinkmanship'. There were other rebellions, one led by Robert Emmett, which wasn't very well organised, but spy networks were also to blame.
Obviously there was a catastrophic potato famine (1/4 of the Irish population fell to disease), with much of the blame being placed on British Negligence and the 'Laissez Faire' policy at the time. Then William Gladstone declared his mission was to pacify Ireland, passed 2 land acts to try and secure tenant rights, fixity of tenure, fair rent and free sale (as their land was governed by absentee landowners in Britain), disestablished the Irish Church and attempted Home Rule twice (1886 and 1894) with the help of Parnell, a charismatic Irish constitutional reformer. Gladstone was misinformed, self-obsessed and an 'old man in a hurry'.
One of the most important reasons for the hesitation to pass Home Rule was Ulster, the prosperous industrialised northern province, filled with spiteful Protestants protesting against 'Home Rule', calling it 'Rome Rule'. They were afraid of segregating trade links with Britain and the growing number of Irish Catholics.
I probably don't know shit, but I hope this added something to the thread. I'm not Irish, so sorry if I sounded pretentious, which I probably did.
Oh, I also remember James 'The Hawk' Stephens had something to do with a Fenian uprising in America, which helped promote Irish nationalism.