The 2000 U.S. Census was the first that allowed people to check more than one category under race.

Question

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The 2000 U.S. Census did introduce the option for people to check more than one race category. Before this, individuals were only allowed to choose one race category to identify with. This is true. Prior to the 2000 Census, individuals were only allowed to select one racial category to identify themselves. However, in 2000, people were given the option to choose more than one race to more accurately represent their racial and ethnic identity.