I have often wondered why we have twelve months when we say four weekes is a month. If that were so we'd be starting our thirteenth month tomorrow and would probably called Undecember (latin for eleven is Undecim) . Here is an explanation , apparently the romans started with ten months but then tried to match it to the (just over) 12 lunar cycles in a year so a 13 month year would be out of sync with th elunare cycles.
The thing remind me of imperial weights and money systems (12 pennies to a shilling , 5 shillings to a crown , then there's half crowns , twenty shillings in a pound and twenty one shillings in a guinea. Then sixteen ounces to a pound, fourteen pounds to a stone etc , then you have twelve inches to a foot , three feet to a yard , six feet to a fathom etc.
Then you have tennis scoring which is weird as hell and the Duckworth-Lewis method in cricket for curtailed matches and all the weird scoring possibilities with light stopping play and more.
Metric is a far more sensible measurement system , although people still have problems with our swith to decimalisation fifty years back.
So this is my first post of the month and think I'm going to go with "The Killing Moon" by Echo & The Bunnymen because of the lunar cycles that prompted this post in th efirst place.