U.S. Department of State Background Note Index: Historical and Cultural Highlights Government and Political Conditions Defense and Military Issues Foreign Relations U.S. Policy Toward North…
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.…
