Carillo Irish Immigration Zane Mark Dillon By facebooker_100001649180923 Jan 1, 1845 Potato Blight often launched second wave Irish people to America. Jan 1, 1892 Ellis Island Opened. Jan 1, 1892 Ellis island opens a station Jan 1, 1920 37 million immigrants entered the U.S. Apr 12, 1920 4.5 million people in Ireland arrived at America. Jan 1, 1921 US only allows some people to come to America. Jan 1, 1992 Laws passed by congress provides examenation of sick immigrants.