Irish Canadians
The first waves of Irish immigrants took place between 1763 and 1880. when ten thousand Irish immigrants arrived on the Island. From 1800 to 1850, "10,000 immigrants from every county in Ireland" had settled in Prince Edward Island and represented 25% of the Island population by 1850.
Ireland–United States relations
The Scots-Irish were some of the first settlers in the 13 colonies and played an important role in The War of Independence, as well as being some of the first cattle drivers in North America. The Irish exerted their own influence inside the United States, particularly through Democratic Party politics. From 1820 to 1860, 2 million Irish arrived in the United States, 75% of these after the Great Irish Famine (or "The Great Hunger") of 1845–1852, struck. Most of them joined fast-growing Irish shantytowns in American cities. The famine hurt Irish men and women alike, especially those poorest or without land. It altered the family structures of Ireland because fewer people could afford to marry and raise children, causing many to adopt a single lifestyle. Consequently, many Irish citizens were less bound to family obligations and could more easily migrate to the United States in the following decade.