https://4thefirsttime.blogspot.com/2008/08/1951-conelrad-established.html
For The First Time (or the last time): 1951: CONELRAD established1963: CONELRAD ended
President Truman established the CONELRAD (CONtrol of ELectronic RADiation) system in 1951 to provide emergency information to the public an...
for the first timelastconelradended