The Pentagon is completed and becomes the largest office building in the world. The Chinese Exclusion Acts of 1882 and 1902 are repealed permitting immigration and naturalization of Chinese. Agnes de Mille choreographs the musical, capturing the essence of American folk dance. Radio classic Amos 'n' Andy is canceled after 15 years and more than 4,000 consecutive shows. K Selman Waksman discovers streptomycin and coins the term antibiotic .
Doctors begin to use the pap test to detect cervical cancer.