Helping injured people goes back to ancient times.
Odysseus got the idea.
it was winston churchills idea
Pericles had the idea to build the Parthenon.
paul reveres idea
Who knows? The person I know who thought of it earliest was Pete Townshend of the Who. In the early 1970s he was working on a project called 'Lifehouse'. Which involved something similar to the internet. Obviously he wasn't creating the internet, he was creating music, but within the music was the basic idea of the internet.