Photo shows man standing on top of bus loading luggage while a group of people gather to say farewell, guardhouse in the background. Photo taken by Ansel Adams in 1943, at the Manzanar War Relocation Center. <br><br>On December 7, 1941, Japan bombed Pearl Harbor. Fear of a Japanese invasion and of subversive acts by Japanese Americans prompted President Franklin D. Roosevelt to sign Executive Order 9066 on February 19, 1942. The order designated the West Coast as a military zone from which "any or all persons may be excluded." Although not specified in the order, Japanese Americans were singled out for evacuation. More than 110,000 people of Japanese ancestry were removed from California, southern Arizona, and western Washington and Oregon and sent to ten relocation camps. Learn More