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Quick question: What years consist of the 21st century?

Discussion in 'After Hours Lounge (Off Topic)' started by NickSo, Nov 17, 2003.

  1. NickSo

    NickSo Well-Known Member

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    Im writing a paper, and I was wondering what year is the 21st century? is it 2000-2099? And the 20th would be 1900-1999 is this correct?

    Thanks
     
  2. ChrisMatson

    ChrisMatson Well-Known Member

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    There was no year 0 (zero), so each centuries begin with 1.
    00:00:00 on 01 January 2001 through 23:59:59 on 31 December 2100 would be your answer.
     
  3. NickSo

    NickSo Well-Known Member

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    Ah, okay, so we would be currently in the 20th century...
     
  4. ChrisMatson

    ChrisMatson Well-Known Member

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    No. We are in the 21st. 1-100 was the first century, 1901-2000 was the 20th and 2001-2100 is the 21st.

    It is similar to thinking of your age. If you are "10 years-old," you are currently in your 11th year:
    0-1= first year
    1-2= 2nd
    2-3= 3rd
    3-4= 4th
    4-5= 5th
    5-6= 6th
    6-7= 7th
    7-8= 8th
    8-9= 9th
    9-10= 10th
    now= 11th

    Did that make any sense?
     
  5. Keith Mickunas

    Keith Mickunas Well-Known Member

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    No, we're in the 21st century. 1 to 100 was the first century. The second began with 101 ending in 200. So you go by the ending year. 1901 to 2000 would therefore be the 20th century. Does that clear it up?
     
  6. Ken Chan

    Ken Chan Well-Known Member

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    Just like 1582 only had 355 days, I would suggest that the 20th century only had 99 years. The third millenium, the 21st century, and the decade after the Nineties -- decades, centuries, and millenia should coincide, shouldn't they? -- all started on January 1, 2000. I remember the fireworks [​IMG]

    I know this rankles some purists, and their argument is certainly logical. I'm just trying to give them a logical way to accept things as they are [​IMG]

    Nick, in your paper you might mention this is a point of some contention.

    //Ken
     
  7. Bryan X

    Bryan X Well-Known Member

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  8. Henry Gale

    Henry Gale Well-Known Member

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  9. Cees Alons

    Cees Alons Moderator
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  10. NickSo

    NickSo Well-Known Member

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    Oh, the paper isnt about time, i just had to describe a period of time, and i just gone blank as to what century we were in :p)
     
  11. Ken Chan

    Ken Chan Well-Known Member

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  12. Jerry F

    Jerry F Member

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    err, never mind...it was a stupid question...
     
  13. Jerry F

    Jerry F Member

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    What do you call the very first year on our calendar? I'm talking Jan 1, 0000 - Dec 31, 0000. Year one, right? It IS a year and it's the first year. Yet, it's 0. So, how can 01 be the first year? There would be a gap of a year at the beginning.
     
  14. Joseph DeMartino

    Joseph DeMartino Well-Known Member

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  15. Kevin P

    Kevin P Well-Known Member

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    Well 2000 years ago people didn't think in terms of computers, and "zero" wasn't used in counting. When you count things, whether it's apples, coins, years, or centuries, you start at 1.

    So, year 1 was the start of the 1st century, and the 1st millennium. A century is 100 years, so 100 + 1 = 101, the start of the 2nd century. Extrapolate this out 19 more centuries, and you have the year 2001, the start of the 21st century, and the 3rd millennium.

    Age is one of the few things that is counted starting at zero, so when you're born you're zero years old (but you're living the first year of your life). After that first year is over, you're 1, and you're starting the 2nd year of your life... clear as mud? [​IMG]

    KJP
     
  16. CharlesD

    CharlesD Well-Known Member

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  17. Jerry F

    Jerry F Member

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  18. BrianW

    BrianW Well-Known Member

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  19. Mike Broadman

    Mike Broadman Well-Known Member

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    We don't even count age by zero. An infant is living his first year, not his zeroth year. As BrianW pointed out, how we label our age is simply a matter of semantic- we go by how many years we've completed. But we never lived a "zeroth" year.
     
  20. Bryan X

    Bryan X Well-Known Member

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