Indians began coming to California in the 19th century. One Indian adventurer was reported in the gold fields as early as 1857. The beginning date of 1899 for the exhibit is arbitrary, chosen to coincide with an article that appeared in the San Francisco Chronicle, 6 April 1899, announcing the arrival of four Sikhs in San Francisco. The ending date, 1965, marks the signing of the Immigration and Nationality Act, popularly known as the Hart-Celler Act, which lifted "national origin" quotas and began a period of vigorous immigration from South Asia. The exhibit focuses on California, leaving out much material from British Columbia, Oregon, and Washington, though major events that had profound effect on the entire immigrant community such as Komanata Maru have been included.