Ta for all that.
I think their are 2 important points in all that.
1. Homer, Sun tzu, Pythagoras et al, left behind stuff that advanced knowledge, whether it was them, partly them, or someone entirely different and they co-opted them and consigned them to being completely unknown… it doesn’t matter, as none claimed divinity about it.
2. I always wondered about the oft quoted trope about a man called ‘Jesus’, and you e just laid it bear, that any fragments could be about hundreds if not thousands of different people. I think I asked earlier today, where’s the info about ‘Jesus’ between being born, then nothing till working as a carpenter, then nothing till kicking up a fuss.