Example image of eyePlorer eyePlorer map for 'Signal Corps (United States Army)': Information systems discipline Albert J. Myer American Civil War Physician United States Army Aeronautical Division, U.S. Signal Corps Military intelligence Argent 1862 1868 1884 Act of Congress 1872 1902 Texas 1860 June 21 Navajo Wars New Mexico Confederate States of America Fort Monroe Fort Wool 1863 March 3 Electrical telegraph First Battle of Bull Run National Weather Service Adolphus Greely United States Department of Agriculture Philippine–American War Spanish–American War Heliograph Telephone War photography Alaska Communications System (ACS) Western Hemisphere 1907 August 1 Wright brothers United States Army Air Service Fort Monmouth George Owen Squier World War I Radar William Blair SCR-268 radar SCR-270 radar FM broadcasting World War II Distinguished Service Medal (United States)