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S.Peelman on 27 December 2019
God not that debate again. 
Technically you count from 1 to 10 yes, and there was no year 0. Luckily though year numbers are completely constructed by man instead of nature a couple centuries ago so here everybody counts a decade by the leading number; 10, 11, 12, 13, 14, 15, 16, 17, 18, 19. Because it's more convenient to speak of the '10s, and actually mean every year that that started with a 1, instead of also 20 but not 10. This may make the first decade on our calendar (which again is just a made up numbering that started at an arbitrary point in time, not used by everyone in the world, and was even corrected at some point) to be only 9 years long, but who cares that's 2000 years ago.
