It was in the 1840s, not 1940s- and the motive was hunger. A major food crop in Ireland was the potato. A plant disease killed the potato plants for 5 years. More than a million people starved, and another million left Ireland.
Scots-irish farmers
ChineseApex
Caused violence in New York, when new Irish immigrants were drafted into the Union army. In the South, one of the most respected Confederate Generals was the Irish-born pharmacist, Pat Cleburne.
About 2,316 died on the Union and 4,550 died on the Confederate
The Irish potato blight receded in 1850, the effects of the famine continued to spur Irish emigration into the 20th century. Still facing poverty and disease, the Irish set out for America where they reunited with relatives who had fled at the height of the famine.
free
Fred Allen
Ireland and Germany. The Irish potato famine in the 1840s led to a mass migration of Irish people escaping starvation and searching for better opportunities in America. At the same time, political unrest and economic hardships in Germany prompted many Germans to immigrate to the United States.
The Irish Potato Famine
Irish potato famine
the irish made a big impact on america with there knowlage of beer and they were poorly treated but now we have festivals for the irish also the irish moved to america cse of the potato famine
migration of many Irish to other countries.
Do some research on "Ellis Island" which is the place in New York where many Irish first arrived in America.
http://www2.ops.org/NORTH/curriculum/socstudies/EthnicB2/past/Irish.htm
Migration of many Irish to other countries.
The most famous massive Irish immigration to the US was around the 1840s due to the major potato famine in Ireland.
There was a burgeoning population and Irish Catholics were discriminated against by Protestants. Then the potato crops began failing, causing a potato famine which was the precipitating factor for a major migration to the U.S.