Examlex
Which vitamin enables bone-building proteins to bind to calcium?
Social Sciences
A branch of science that deals with the institutions and functioning of human society and the interpersonal relationships of individuals as members of society.
Progressive Era
A period of widespread social activism and political reform in the United States from the 1890s to the 1920s, aimed at eliminating problems caused by industrialization, urbanization, immigration, and political corruption.
Booker T. Washington
Booker T. Washington was an influential African American educator, author, orator, and advisor to presidents of the United States in the late 19th and early 20th centuries, who advocated for African American advancement through education and entrepreneurship.
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