1849: America’s first anti-immigrant political party, the Know-Nothing Party forms, as a backlash to the increasing number of German and Irish immigrants settling in the United States.

1875: Following the Civil War, some states passed their own immigration laws. In 1875 the Supreme Court declares that it’s the responsibility of the federal government to make and enforce immigration laws.

1880: As America begins a rapid period of industrialization and urbanization, a second immigration boom begins. Between 1880 and 1920, more than 20 million immigrants arrive. The majority are from Southern, Eastern and Central Europe, including 4 million Italians and 2 million Jews. Many of them settle in major U.S. cities and work in factories.

1882: The Chinese Exclusion Act passes, which bars Chinese immigrants from entering the U.S. Beginning in the 1850s, a steady flow of Chinese workers had immigrated to America.

They worked in the gold mines, and garment factories, built railroads, and took agricultural jobs. Anti-Chinese sentiment grew as Chinese laborers became successful in America. Although Chinese immigrants make up only 0.002 percent of the United States population, white workers blame them for low wages.

The 1882 Act is the first in American history to place broad restrictions on certain immigrant groups.

1891: The Immigration Act of 1891 further excludes who can enter the United States, barring the immigration of polygamists, people convicted of certain crimes, and the sick or diseased. The Act also created a federal office of immigration to coordinate immigration enforcement and a corps of immigration inspectors stationed at principle ports of entry.

January 1892: Ellis Island, the United States’ first immigration station, opens in New York Harbor. The first immigrant processed is Annie Moore, a teenager from County Cork in Ireland. More than 12 million immigrants would enter the United States through Ellis Island between 1892 and 1954.

1907: U.S. immigration peaks, with 1.3 million people entering the country through Ellis Island alone.

February 1907: Amid prejudices in California that an influx of Japanese workers would cost white workers farming jobs and depress wages, the United States and Japan sign the Gentlemen’s Agreement. Japan agrees to limit Japanese emigration to the United States to certain categories of business and professional men. In return, President Theodore Roosevelt urges San Francisco to end the segregation of Japanese students from white students in San Francisco schools.1849

1910: An estimated three-quarters of New York City’s population consists of new immigrants and first-generation Americans.

1917: Xenophobia reaches new highs on the eve of American involvement in World War I. The Immigration Act of 1917 establishes a literacy requirement for immigrants entering the country and halts immigration from most Asian countries.

May 1924: The Immigration Act of 1924 limits the number of immigrants allowed into the United States yearly through nationality quotas. Under the new quota system, the United States issues immigration visas to 2 percent of the total number of people of each nationality in the United States at the 1890 census. The law favors immigration from Northern and Western European countries. Just three countries, Great Britain, Ireland and Germany account for 70 percent of all available visas. Immigration from Southern, Central and Eastern Europe was limited. The Act completely excludes immigrants from Asia, aside from the Philippines, then an American colony.

1924: In the wake of the numerical limits established by the 1924 law, illegal immigration to the United States increases. The U.S. Border Patrol is established to crack down on illegal immigrants crossing the Mexican and Canadian borders into the United States. Many of these early border crossers were Chinese and other Asian immigrants, who had been barred from entering legally.