Equal Pay Act 1963
It is the first federal law prohibiting sexual discrimination.
In 1963 the average female worker’s wages in the United States were equivalent to 58.9 % of the average male worker’s earnings.
It abolished wage differences based on sex.
“No employer having employees subject to any provisions of this section [section 206 of title 29 of the United States Code] shall discriminate, within any establishment in which such employees are employed, between employees on the basis of sex by paying wages to employees in such establishment at a rate less than the rate at which he pays wages to employees of the opposite sex in such establishment for equal work on jobs…” -- Equal Pay Act