Whats an year? - The time taken by the earth to complete its orbit around the sun.
Whats a month? - The time sun spends in one constellation.
Whats a day? - Time taken for earth to revolve once on its own axis.
Whats a fortnight? - Time taken for the moon to go from new moon state to full moon (and vice versa)
Well, whats a week? I dont know! I have no clue as to how this time slice is arrived at. I have asked this question to lot of people and all I have got is sheepish smiles (and sometimes "dont-bother-me" stares) Some are creative enough to answer that 2 weeks make a fortnight. But I am not convinced. If you want to split up a fortnight, why 2 weeks and why not 7 "2-dayers"?
You have any idea as to whats the rationale for defining the time slice called "week"? Even if you dont know the exact answer, any thoughts on this are absolutely welcome. And wrong answers carry no negative marks!