Completar frases British Imperialism: IrelandVersión en línea A brief history of the relationship of between Britain and Ireland. por Brittany Moore 1 Throughout much of its history , Ireland fought against rule by other . Most of the island gained independence in the 1920s . However , the Kingdom continued to control a section called Northern Ireland . ENGLISH RULE In 1170 ? 71 English armies large parts of Ireland . In the early 1600s England sent English and Scottish Protestants to settle in northern Ireland . Irish Catholics revolted against those settlers in 1641 , but the English crushed the revolts . The English also imposed strict anti - laws . By the end of the 1600s England firmly the island . In 1801 the Act of Union joined Great Britain ( England , Scotland , and Wales ) and Ireland into the United Kingdom . FAMINE Beginning in the mid - 1800s , a large portion of the country ? s left Ireland because of the potato of 1845 ? 49 , a poor economy , and high unemployment . English landowners controlled agriculture and land and Irish people were able to grow large quantities of nutritious that they fed their families and animals , but then the virus destroyed crops , leading to more than a deaths by and mass emigration . INDEPENDENCE Irish opposition to British rule remained strong through much of the 1800s and 1900s . Beginning in 1919 the Irish Army ( IRA ) fought the British Army for . Members of the IRA wanted the province of Northern Ireland to unite with the rest of Ireland . If necessary , they were prepared to use violence to achieve their aims . In 1921 Britain agreed to make the part of the island the Irish Free State . In 1948 Ireland voted to become a fully independent . Britain and Ireland struggled over control of Ireland until 1973 . That year the government of Ireland acknowledged British rule in the north . However , the IRA continued to attack the in the hope of all of Ireland . In 2005 the IRA announced that it would no longer use violence . This allowed the two main and Catholic political parties to come together and share in the Northern Ireland Assembly .