r/spaceporn Dec 13 '19

Last full moon of the decade!

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37.7k Upvotes

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126

u/scotlynhatt Dec 13 '19

I think the decade technically ends next year but it is a great shot. Last of the 2010s.

109

u/thiosk Dec 13 '19

correct~ there was no year zero.

decade 1 = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 (10 yrs)

best decade: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

this decade: 😀😀😀😀, 😃😃😃😃, 😄😄😄😄 😁😁😁😁 🤣🤣🤣🤣, 😨😨😨😨, 😬😬😬😬, 😟😟😟😟, 🥵🥵🥵🥵<---- you are here 🤢🤢🤢🤢

25

u/FreeLook93 Dec 13 '19

This is all well and good, but you are not actually correct.

A decade is simply a measure of 10 years. It can start from any time. 10 years measure starting from June 19th 1876 is just as much a decade as any other span of 10 years. If you were to say "the 20th century" that would be the 20th century AD, so a measure of 100 years starting from January 1, 1901 and ending on December 31, 2000. If you were to say "the 1900s" that would be a century starting on January 1, 1900, and ending on December 31, 1999. These are two distinct things, different from each other, but both equally centuries. With decades, we do not talk about the 200th decade, no on says that, they say "the 1990s", which would be a decade starting on January 1, 1990, and ending on December 31, 1999.

So there being no year 0 doesn't actually change anything, since we don't measure decades the same way we do centuries.

6

u/Roar_Im_A_Nice_Bear Dec 13 '19

Yep. I had this conversation with my dad last week and we decided to check online. Here's the consensus we found on multiple sites:

  • the third millenium began in 2001, not 2000 (because there's no year zero, so the 1st millennium began in year 1)

  • same with centuries, the 21st century began in 2001

  • not the case with decades: decades were adopted later on, and begin in years ending in 0. So in a few days it will be a new decade.

Tl,dr: millenium goes from 1 to 1001, century goes from 1 to 101, decade goes from 0 to 10

1

u/diamaunt Dec 14 '19

Best post so far :)