Maybe I do not understand, but 2010 is, indeed, the beginning of a new decade. Here’s why:
Our calendar purportedly begins with the birth of Christ in 0 A.D., right? So the first ten years are the years 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. That is ten years - one decade. So the second decade begins in the year 10. If you follow this logic up through the decades since Christ’s birth, 2010 is, indeed, the beginning of a new decade.
Not sure why that is so hard to understand for so many people.
Wrong. There was no year "0".
>> Our calendar purportedly begins with the birth of Christ in 0 A.D., right?
This is crazy. Of course there’s 0 AD. There’s also -1 AD, and there’s also 3010 AD.
A decade is a period of 10 years. From the zero time AD, the 10 year interval completes 10 years thereafter.
All I want to know is how many days elapsed between zero time AD and what’s considered to be 1 AD. If zero, then the decade intervals are 1, 11, 21, 31... But if 1 year elapsed between time zero AD and 1 AD, then the decade intervals are 0, 10, 20, 30...
Wrong. The first year is ONE, not zero. Think, Man. sd