What was the cause of the Civil Rights Act of 1866

The Civil Rights Act (1866) was passed by Congress on 9th April 1866 over the veto of President Andrew Johnson. The act declared that all persons born in the United States were now citizens, without regard to race, color, or previous condition.

Explanation:

in its entirety, the "final solution" called for the murder of all european jews by gassing, shooting, and other means. six million jewish men, women, and children were killed during the holocaust—two-thirds of the jews living in europe before world war ii

the term is einsatzgruppen