Sexual harassment in the workplace in US labor law has been considered a form of discrimination on the basis of sex in the United States since the mid-1970s.[1][2] There are two forms of sexual harassment recognized by United States law: quid pro quo sexual harassment (requiring an employee to tolerate sexual harassment to keep their job, receive a tangible benefit, or avoid punishment) and behavior that creates a hostile work environment (persistent sexual behavior that unreasonably interferes with an employee's ability to work). It has been noted that a number of the early sexual harassment cases were brought by African American women and girls.