Between 1850-1914, over 40 million Europeans migrated to the United States, undergoing difficult voyages in poor conditions. Upon arrival in New York, migrants were sent to Ellis Island where they underwent medical examinations to check for illness and literacy assessments. Those who were old, illiterate, ill or otherwise undesirable were often sent back to Europe. By 1911, only 2% of migrants were denied entry to the United States. Immigrants contributed to the growing mixed society of America but often found themselves working the worst jobs for low pay despite intentions of assimilation.