Complete the timeline of irish history in the twentieth century. in the early 1900s, persistent calls for self-determination in ireland led to a series of 1916, a rebellion known as the led by irish nationalists, seized key locations in ireland and proclaimed the island independent. from 1919 to 1921, the irish republican army (ira) fought a guerrilla war against british rule. in 1921, ireland was broken into an independent republic and a subdivision of great britain. in 1994, there was a cease-fire announcement from the ira. beginning in the 1960s, a period of terrorism erupted that became known as 1998, after continual breakdowns in peace talks, all parties signed the