"While the greatest number of NINA instances occurred in the 1840s, Fried found instances for its continued use throughout the subsequent century, with the most recent dating to 1909 in Butte, Montana.Alongside "No Irish Need Apply" signs, in the post-World War II years, signs saying "No Irish, No Blacks, No Dogs" or similar anti-Irish sentiment are reported to begin to appear in the United Kingdom, as discussed by the Irish Studies Centre at London Metropolitan University.