Harvard University
Open Collections Program: Immigration to the United States, 1789 1930: Timeline
A broad look at immigration policy, its changes, and the numbers of immigrants arriving in the United States from its beginnings until 1940. Included are hyperlinks to primary sources related to the topic in the Harvard University Library.
Siteseen
Siteseen: American Historama: Us Immigration Laws
Provides a timeline, facts, and information about the history of US Immigration Laws with a description of the dates and the purpose of each of the US Immigration laws.