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chemistry

(Encyclopedia) chemistry, branch of science concerned with the properties, composition, and structure of substances and the changes they undergo when they combine or react under specified conditions…

space exploration

(Encyclopedia) CE5 Moon mission assembly CE5 Stages in a moon mission shown counterclockwise from launching on the first day to splashdown on the ninth day. space exploration, the…

State Department Notes on Mali

U.S. Department of State Background Note Index: People History Government and Political Conditions Economy Defense U.S.-Malian Relations PEOPLEMali's population consists of diverse Sub-Saharan…

State Department Notes on Ethiopia

U.S. Department of State Background Note Index: Geography People History Government and Political Conditions Economy Defense Foreign Relations U.S.-Ethiopia Relations GEOGRAPHY Ethiopia…

Selected Biographies: C

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z More Biographies Don't see the biography you're looking for? Search 30,000+ biographies Biographies by Category…

jazz

(Encyclopedia) jazz, the most significant form of musical expression of African-American culture and arguably the most outstanding contribution the United States has made to the art of music…