Between 1870 and 1920, the United States underwent rapid urbanization as immigrants arrived seeking jobs. Most immigrants were not refugees but job seekers attracted to new economic opportunities like free labor and secure private property. The largest number of immigrants in U.S. history arrived during this time period, with many Germans, Russians, Jews, and others migrating. Many immigrants found work in cities, with over 70% of German-employed males and 84% of Irish-employed males working outside of agriculture by 1900. However, some immigrants also settled in rural areas as farmers, taking advantage of land offered by railroads and the government.