ships include the Jeanie Johnston and the Dunbrody. There are many statues and memorials in Dublin, New York and other cities in memory of the famine. The Fields of Athenry is a famous song about the Great Famine and is often sung at national team sporting events in memory and homage to those affected by the famine. The Great Famine is one of the biggest events in Irish history and is ingrained in the identity on the nation to this day. It was a major factor in Irish Nationalism and Ireland's fight for Independence during subsequent rebellions, as many Irish people felt a stronger need to regain independence from British rule. 20th century After the Irish War of Independence (1919–1921) the Anglo-Irish Treaty was signed which led to the formation of the independent Irish Free State (now the independent Republic of Ireland) which consisted of 26 of Ireland's 32 traditional counties. The remaining six counties in the northeast remained in the United Kingdom as Northern Ireland. It is predominantly religion, historical, and political differences that divide the two communities of (nationalism and unionism). Four polls taken between 1989 and 1994 revealed that when asked to state their national identity, over 79% of Northern Irish Protestants replied "British" or "Ulster" with 3% or less replying "Irish", while over 60% of Northern Irish Catholics replied "Irish" with 13% or less replying "British" or "Ulster". A survey in 1999 showed that 72% of Northern Irish Protestants considered themselves "British" and 2% "Irish", with 68% of Northern Irish Catholics considering themselves "Irish" and 9% "British". The survey also revealed that 78% of Protestants and 48% of all respondents felt "Strongly British", while 77% of Catholics and 35% of all respondents felt "Strongly Irish". 51% of Protestants and 33% of all respondents felt "Not at all Irish", while 62% of Catholics and 28% of all respondents felt "Not at all British". Recent history Religion in Ireland In the Republic of Ireland, as of 2016, 3.7 million people or about 78.3% of the population are Catholic. In Northern Ireland, about 41.6% of the population are Protestant (19.1% Presbyterian, 13.7% Church of Ireland, 3.0% Methodist, 5.8% other Christian) whilst approximately 40.8% are Catholic as of 2011. The 31st International Eucharistic Congress was held in Dublin in 1932, that year being the supposed 1,500th anniversary of Saint Patrick's arrival. Ireland was then home to 3,171,697 Catholics, about a