 By 1850, 359,980 immigrants arrived in the United States, and by 1854, 427,833 immigrants arrived to seek out a new living.With the increase in new immigrants in the city, native Louisville residents felt threatened by change, and began to express anti-foreign, anti-Catholic sentiments.In 1841, the growth in population prompted the Catholic archdiocese to move the bishop's seat from Bardstown to Louisville.