Read this article for free!

Plus get unlimited access to thousands of articles, videos and more with your free account!

Please enter a valid email address.

By entering your email, you are agreeing to Fox News Terms of Service and Privacy Policy, which includes our Notice of Financial Incentive. To access the content, check your email and follow the instructions provided.

NEWYou can now listen to Fox News articles!

During the middle of the 20th century, scientists and social…


Read the Full Article