The Civil Rights Act of 1964 is a landmark piece of civil rights legislation in the United States that outlawed discrimination based on race, color, religion, sex, or national origin. It ended unequal application of voter registration requirements and racial segregation in schools, at the workplace and by facilities that served the general public. Powers given to enforce the act were initially weak, but were supplemented during later years. Congress asserted its authority to legislate under several different parts of the United States Constitution, principally its power to regulate interstate commerce under Article One (section 8), its duty to guarantee all citizens equal protection of the laws under the Fourteenth Amendment and its duty to protect voting rights under the Fifteenth Amendment. The Act was signed into law by President Johnson on July 2, 1964, at the White House. Photographed by Cecil Stoughton.