If there were they were killed by the earth in some massive asteroid, land upheaval, etc. only way would be to get rid of the concept of mine and yours, control of ideas that can freely be given. Theres is always someone that will want to make a profit and control off of something that was intended to be free.
It's called "The Great Filter" for a reason, I suppose. Almost no civilizations make it past industrialization because they wipe themselves out.
If there were they were killed by the earth in some massive asteroid, land upheaval, etc. only way would be to get rid of the concept of mine and yours, control of ideas that can freely be given. Theres is always someone that will want to make a profit and control off of something that was intended to be free.