(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…
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U.S. Department of State Background Note Index: People Historical Overview Government and Political Organization National Security Economy Foreign Relations U.S.-Pakistan Relations PEOPLEThe…
Adrenaline: (isolation of) John Jacob Abel, U.S., 1897. Aerosol can: Erik Rotheim, Norway, 1926. Air brake: George Westinghouse, U.S., 1868. Air conditioning: Willis Carrier, U.S., 1911.…
