Marian Anderson
18971993
American contralto whose historic 1939 Lincoln Memorial concert and 1955 Metropolitan Opera debut paved the way for Black artists
4 ទំព័រវិញ្ញាណក្ខន្ធ បានរកឃើញ
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មើលទាំងអស់ក្នុង Lives ជាមួយតម្រងដែលបានអនុវត្ត18971985
American medical researcher and Nobel Laureate, often called "The Father of Modern Vaccines," who cultured poliovirus and developed the measles vaccine
