Kalender: Forskelle mellem versioner

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Flertydige WL: gudgud (højere væsen)
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=== Præcolumbianske mellemamerikanske kalendere ===
Som det ses af tabellen, er [[maya]]ernes kalender<ref>[http://www.livescience.com/25662-how-mayan-calendar-works.html The Real Deal: How the Mayan Calendar Works. LiveScience]</ref> (og sikkert også andre mellemamerikanske kalendere) nøjagtigere end den julianske kalender. Det er usikkert om mayaernes kalender er mere nøjagtig end den gregorianske kalender, da det er mennesker, som har lavet beregningerne. Men mayaernes kalender kan meget vel have været nøjagtigere.
<ref name="Smiley1960">[http://adsabs.harvard.edu/full/1960JRASC..54..222S The antiquity and precision of mayan astronomy by Charles H. Smiley, Brown University, Rhode Island] Citat: "...If one conclusion is to be drawn, it is that we must cease to think of the Mayans as ignorant savages; we must regard them instead as an enlightened people who, in the field of astronomy, were centuries ahead of the rest of the world..."</ref>
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