Admiring of internet

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I always admiring of internet things. It's a biggest discovery in the world. We learn of many things here, including why I am here is part of my admire of it. When I read book of Dan Brown, Angels and Devil, I just realize that internet is discover for military needs in the beginning. And found by a secret 'thing' instead of the company who claimed it. Is that that book said a truth? If it's true why this secret 'thing' didn't do any protest or sue the company who claiming as a internet founder?