Marian Anderson
18971993
American contralto whose historic 1939 Lincoln Memorial concert and 1955 Metropolitan Opera debut paved the way for Black artists
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ফিল্টার প্রয়োগ করে জীবনে সব দেখুন18971985
American medical researcher and Nobel Laureate, often called "The Father of Modern Vaccines," who cultured poliovirus and developed the measles vaccine
