People have been doing cool stuff for eons, and yet only a select few are known. There were ancient mayans doing math that would be advanced by today's standards, just like there are inventors today with their crazy personal inventions.
In the end, if you want to be known, you have to make yourself known, because no one friggin cares. It's important to note too, that not everyone wants to be known.
Two key points: (a) Do it for yourself. (b) If you choose to care, you'll be able to find lots of cool stuff.