Changes

Finally, the Act excluded from entry anyone born in a geographically defined “Asiatic Barred Zone” except for Japanese and Filipinos. In 1907, the Japanese Government had voluntarily limited Japanese immigration to the United States in the Gentlemen’s Agreement. The Philippines was a U.S. colony, so its citizens were U.S. nationals and could travel freely to the United States. China was not included in the Barred Zone, but the Chinese were already denied immigration visas under the Chinese Exclusion Act.

The literacy test alone was not enough to prevent most potential immigrants from entering, so members of Congress sought a new way to restrict immigration in the 1920s. Immigration expert and Republican Senator from Vermont William P. Dillingham introduced a measure to create immigration quotas, which he set at three percent of the total population of the foreign-born of each nationality in the United States as recorded in the 1910 census. This put the total number of visas available each year to new immigrants at 350,000.