"sf" > wrote in message
...
> On Thu, 31 Dec 2009 15:56:02 -0600, Michel Boucher
> > wrote:
>
>>ffu > wrote in news:m57qj5dtc2ek13hbrucrvvvgj6fgbavr5n@
>>4ax.com:
>>
>>> Correct, decades are for example 2010 - 2020 = 10 years = 1 decade
>>
>>Actually, 2010 to 2020 inclusive is 11 years. Let's count them:
>>
>>1. 2010
>>2. 2011
>>3. 2012
>>4. 2013
>>5. 2014
>>6. 2015
>>7. 2016
>>8. 2017
>>9. 2018
>>10. 2019
>>11. 2020
>
> Hello? Concept of zero? Counting began today for the next decade.
> After 12 months go by (at the *end* of the year), we'll put a 1 in the
> 1's place at 12 AM New Year's Day 2011. Look at a 24 hour clock to
> know when AM begins and pick your nits with the boyz at GMT.
>>
>>When you count objects, say coins, do you start counting at 0 and consider
>>you have ten objects when you are at 9? Of course not. Same with years.
>>There was no year 0 so the first decade was year one through 10
>>inclusively, the second 11 through 20, etc.
>
> The first year certainly did begin at zero. Think of babies birthdays
> and you'll understand it a little better.

That old canard is completely irrelevant!! Babies' first year has nothing
to do with calendars!
You call the first year on the calendar YEAR 1!!!! Ergo, Year 10 is the END
of the decade!
Very simple really.
Graham