Anti-discrimination law
The Civil Rights Act of 1964 was the first major development in anti-discrimination law in the US, though prior civil rights legislation (such as the Civil Rights Act of 1957) addressed some forms of discrimination, the Civil Rights Act of 1964 was much broader, providing protections for race, color, religion, sex, or national origin in the areas of voting, education, employment, and public accommodations. This landmark legislation led the way for other federal legislation, which expanded upon the protected classes and forms of discrimination prohibited under federal legislation, such as the Fair Housing Act or the Americans with Disabilities Act. These protections have also been expanded through the courts interpretation of these pieces of legislation. For example, the 7th and 2nd circuit courts have both ruled that employment discrimination based on sexual orientation is a violation of Title VII of the Civil Rights Act. In addition to federal legislation, there are numerous state and local laws that address discrimination that is not covered by these laws.
Ageism
Age discrimination in hiring has been shown to exist in the United States. The Equal Employment Opportunity Commission's first complainants were female flight attendants complaining of (among other things) age discrimination. In 1968, the EEOC declared age restrictions on flight attendants’ employment to be illegal sex discrimination under Title VII of the Civil Rights Act of 1964. However, Joanna Lahey, professor at The Bush School of Government and Public Service at Texas A&M, found recently that firms are more than 40% more likely to interview a young adult job applicant than an older job applicant. All states in the US prohibit youth under 14 from working with a handful of exceptions, and prohibit youth under 18 from working in hazardous occupations. They are also paid a lower minimum wage and not allowed to work full-time.