The U.S.-Mexican border at Tijuana
Source: Public Domain
The U.S. border fence near El Paso
Source: Public Domain
U.S. Border Patrol agents on horseback
Source: Public Domain
U.S. Border Patrol guards intercepting illegal immigrants from Mexico in Southern California
Source: Public Domain
Suspected illegal immigrants at a U.S. detention facility
Source: Public Domain
A monument at the Tijuana-San Diego border to those who have died while crossing the U.S.-Mexican border
Source: Tomas Castelazo
U.S. President Barack Obama meeting with Arizona Governor Jan Brewer
Source: Public Domain
Early twentieth-century immigrants on Ellis Island
Source: National Archives
Supporters of Arizona's strict law on illegal immigration
Source: Arizona Tea Party, Diane Burnett. Used by permission.
Protesters against Arizona's strict law on illegal immigration
Source: Arasmus Photo
A street sign at the U.S.-Mexico border
Source: Toksave
Ellis Island in 1905
Source: Public Domain
The main building at Ellis Island
Source: National Park Service
Immigrant inspection at Ellis Island
Source: National Park Service
Immigrants at Ellis Island
Source: National Park Service
A depiction of the lynching of Italians in New Orleans in 1891
Source: Public Domain
The Statue of Liberty greeted many immigrants who arrived at Ellis Island
Source: National Park Service
A warning sign at the U.S.-Canada border
Source: Public Domain
Arizonan opponents of illegal immigration, Republican State Senator Russell Pearce (left), sponsor of SB1070, and Maricopa County's Joe Arpaio, who promotes himself as "America's toughest sheriff"
Source: Phoenician Patriot
A sign near the U.S.-Mexico border warning in Spanish: "Caution! Do not expose your life to the elements. There is no potable water. It's not worth it!"
Source: Wikimedia Commons
A 1758 rendering of the expulsion of the Acadians, an event that influenced early U.S. views on immigration
Source: Public Domain
A Mexican family enjoying the beach on the U.S. side of the border fence
Source: Public Domain
Workers in Mexico seeking legal employment in the United States as part of the Bracero program, 1954
Source: Public Domain/ LA Times
An 1888 cartoon from Puck magazine lamenting the perceived loss of jobs of native born American workers to immigrants
Source: Public Domain
Health officials examining detainees at the Angel Island, California Immigration Station around 1917
Source: Public Domain (The National Archives)
