Final answer:
The specific legislation introduced by Senator S. Hayakawa in 1981 is not provided in the references, but significant race-related legislation from that period includes the Civics Liberties Act of 1988 and the McCarran-Walter Act of 1952, which relate to civil rights and immigration policies.
Step-by-step explanation:
The legislation introduced by Senator S. Hayakawa of California in 1981 is not explicitly mentioned in the provided references. However, we can discuss the broader context of race-related legislation and the political climate during that time. A significant piece of legislation affecting civil rights was the Civics Liberties Act of 1988, which was a culmination of efforts by many including Japanese Americans and allies to address past injustices. The Act was influenced by the experiences of political figures such as Congresswoman Patsy Takemoto Mink.
Concerning immigration and race, the McCarran-Walter Act of 1952 is notable, as it removed race as a barrier to U.S. citizenship and somewhat eased the immigration quota system, although it still reflected prejudices with very limited quotas for Asian immigrants. Senator Hayakawa's efforts, if related to this context, may have been related to the ongoing discussions about immigration and racial equality linked to prior legislation like the McCarran-Walter Act and the Civil Liberties Act that sought to rectify past injustices.
Other notable legislative efforts around this time involved combatting discrimination, such as the opposition to the discriminatory California Proposition 6, the Briggs Initiative, and the contested Proposition 187, both related to minority rights in California.