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Determining Vernal Equinox by observation

As noted in comments, Easter has been calculated, not measured since the third century. However measuring the date of the equinox is something that is well within the abilities of any ancient ...
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Determining Vernal Equinox by observation

People have been able to determine the approximate date of the equinox since ancient times. The Babylonians even knew (to fairly good precision) the location of the First Point of Aries (the March ...
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