Japanese-American life before World War II

People from Japan began emigrating to the U.S. in significant numbers following the political, cultural, and social changes stemming from the 1868 Meiji Restoration. Japanese immigration to the Americas started with immigration to Hawaii in the first year of the Meiji period in 1868.
Early immigration.
Following the Chinese Exclusion Act of 1882, Japanese immigrants were increasingly sought by industrialists to replace the Chinese immigrants. However, as the number of Japanese in the United States increased, resentment against their success in the farming industry and fears of a "yellow peril" grew into an anti-Japanese movement similar to that faced by earlier Chinese immigrants. Around the turn of the century, around four thousand Japanese immigrants lived in San Francisco, funding their education as domestic workers.
Anti-Asian litigation.
In 1907, the Gentlemen's Agreement between the governments of Japan and the U.S. ended immigration of Japanese laborers (i.e., men), but permitted the immigration of spouses and children of Japanese immigrants already in the U.S. The Immigration Act of 1924 banned the immigration of all but a token few Japanese.
The ban on immigration produced unusually well-defined generational groups within the Japanese American community. Initially, there was an immigrant generation, the Issei, and their U.S.-born children, the Nisei Japanese American. The Issei were exclusively those who had immigrated before 1924. Because no new immigrants were permitted, all Japanese Americans born after 1924 were — by definition — born in the U.S. This generation, the Nisei, became a distinct cohort from the Issei generation in terms of age, citizenship, and English language ability, in addition to the usual generational differences. Institutional and interpersonal racism led many of the Nisei to marry other Nisei, resulting in a third distinct generation of Japanese Americans, the Sansei. Significant Japanese immigration did not occur until the Immigration Act of 1965 ended 40 years of bans against immigration from Japan and other countries.
The Naturalization Act of 1790 restricted naturalized U.S. citizenship to "free white persons," and an 1870 amendment extended the right to African Americans, but the Issei and other Asian immigrants were excluded from citizenship. As a result, the Issei were unable to vote, and faced additional restrictions such as the inability to own land under many state laws. These laws would remain in effect until 1952, when the Supreme Court ruled alien land laws unconstitutional and the Walter-McCarran Act removed race-based requirements for naturalization.