Biographical Sources

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Biographical Dictionary

Biography

Biography.com

Famous Physicists

Famous Astronomers and Astrophysicists

Mathematicians

American National Biography Online

African-American Pioneers

I have a Dream by Martin Luther King, Jr. Delivered on the steps at the Lincoln Memorial in Washington D.C. on August 28, 1963

http://afgen.com/pioneer.html

Women's biographies: Distinguished Women of Past and Present