Which statement is NOT true? Slavery was an established institution until the Twelfth Amendment was ratified on December 18, 1865. States now forbid operators of theaters, hotels, and restaurants to refuse service to minority groups. Beginning about 1890, approximately twenty states enacted segregation laws directed primarily at African Americans.

States now forbid operators of theatres, hotels, and restaurants to refuse service to minority groups.

Explanation:

This was not the case, but even after slavery was abolished, racial discrimination continued. Thus, whites continued to enforce segregation on the African-American population. Women have often been the targets of sexual assaults. These cases were particularly pronounced in the South. And if many rights are guaranteed to this section of the population by the abolition of slavery, in some parts of the country it has taken a long time for such a decision to take effect.

labor leaders and organizations had the power to demand it.

explanation:

workers got a five-day workweek because the bcea protects and respect the rights of the employees. labor leaders and other groups demanded it.