By 1850 Catholics had become the country's largest single denomination. Between 1860 and 1890 the population of Catholics in the United States tripled through immigration; by the end of the decade, it would reach seven million. These huge numbers of immigrant Catholics came from Ireland, Quebec, Southern Germany, Italy, Poland and Eastern Europe. This influx would eventually bring increased political power for the Catholic Church and a greater cultural presence led at the same time to a growing fear of the Catholic "menace". As the 19th century wore on animosity waned, Protestant Americans realized that Catholics were not trying to seize control of the government.