Yes. The ancient Egyptians did create a calendar that had 10 days a week. hope this helps :)
I believe the answer is: Not been disseminated before unless noted otherwise.
This ethical perception exist to held the writers accountable for the validity of things that they wrote. Since it is an ethical standard, technically the writers would not face legal punishment as long as they made a dissemination when the things they wrote are proven to be wrong.
Atoms are the building block for one element whereas molecular are different element atoms bound together either covalently or ionically