There are a lot you know that many others don't. Kindly share what you know on this thread and enrich other people's knowledge by so doing.
It doesn't matter what topic, in as much as it is an established fact, you're welcome. For an instance, , that Venus is one of the 9 planets so far discovered. You may think everybody should know this but believe me, some of us don't know.
So let's have fun as we learn from others.