Chinese Americans were the first group of immigrants from Asia who came to the United States in the mid-19th century. A second wave of immigrants came following the Immigrant Act of 1965. These new immigrants had more diverse backgrounds and introduced new patterns of lifestyle. Since 1965, the Chinese population has increased 10-fold to reaching 2.9 million in the 2000 census, becoming 1% of the total U.S. population. Chinese Americans are in a varied background and with diverse identities. Two-thirds are foreign-born and experiencing stereotype, prejudice, and acculturation adjustment.