Quote:
Originally Posted by Dr Terry
What has muddied the waters is using the tag, the 20s or the 30s. These are really not mathematical decades, they are just a group of 10 years which share a similar naming prefix.
Dr Terry
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That's what I said to begin with, mathematically a decade is the 1/1/2011-1/1/2020 meaning the next mathematically correct decade will start next year and can be confirmed if starting from Christs birth and counting blocks of 10's.
That is beyond doubt, I was simply saying that in modern times, society has thrown the math out the window and focussed on the decade as what could be described as an era, ie. the 20's we're from 1/1/1920 to 1/1/1929..
https://en.wikipedia.org/wiki/1920s
The 60's the same, the 90's the same and so on.
Its not technically correct, but its how its viewed and why its celebrated as such.