他们发明了长历法，这是一种对其文化具有精神意义的时间计量系统。
They created the Long Count Calendar, a time measurement system that had spiritual significance to their culture.
“长历法”是一个数字上经得起推敲的历法，它不基于古老的测量时间的方法。
The Long Count is a numerically predictable calendar, not based on archaic measures of time.
如今，许多研究玛雅文明的学者认为历法将在5，126年后完成一个轮回（或者至少完成第一个轮回）仅仅是“长历法”推测的一个数值结果。
Now, purely as a consequence of the Long Count's numerical value, many Mayan scholars agree that the calendar will "run out" after 5,126 years (or, at least, it's first cycle does).
2012年12月21日太阳直射南回归线那天，世界标准时间格林尼治时间上午11点11分整，标志着古代玛雅人长历法中长约5125年的一个大周期的结束。
The Solstice1 on December 21, 2012, precisely at 11:11 AM Universal Time, marks the completion of the 5,125 year Great Cycle of the Ancient Mayan Long Count Calendar.
当然，有些事实证据是有效的，比如玛雅人的确有一个长记历的历法，地磁反转理论也的确存在，太阳活动的确在减弱等等。
Certainly, some of the facts at hand are valid; for example, the Maya did have a Long Count calendar, pole-shift theory does exist, and solar activity does wax and wane.
当然，有些事实证据是有效的，比如玛雅人的确有一个长记历的历法，地磁反转理论也的确存在，太阳活动的确在减弱等等。
Certainly, some of the facts at hand are valid; for example, the Maya did have a Long Count calendar, pole-shift theory does exist, and solar activity does wax and wane.
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