Elvis Presley, the “King” of Rock and Roll, received the vaccine against polio on national TV on 28th October 1956. Because of Elvis’ immense popularity, the immunisation levels in the United States soared from 0.6% to more than 80% in just 6 months. A great example of public service advertisement.
The origins of phrase "Hello world!" as a test phrase can be traced to an example program in seminal book, "The C Programming Language", written by Brian Kernighan and Dennis Ritchie. [more...]