I do not claim to have created the blogosphere or, obviously, to have created the first blog post.
The developers of "C" (Ken Thompson and Dennis Ritchie) displayed this phrase on what is now known as a computer screen - the CRT. These were the first characters/words to be displayed. Why did they choose "HELLO WORLD"? Because this simple phrase says 'Listen to me!!!', because it says 'Is there anyone out their...", because it says 'I will listen...'.
We published, we reviewed, we critiqued...