1920-21 The state of Northern Ireland was set up.
1967 The Civil Rights Association was formed to try and get equal treatment for everyone in Northern Ireland.
1969- The British Army was sent to Northern Ireland to try and restore peace.
1998 ON 10 April 1998 the Belfast Agreement or the Good Friday Agreement was signed.
1998 ON 23 May 1998, people in the Republic of Ireland and in Northern Ireland voted in favour of the Belfast Agreement