If I am not mistaken, one year is one full orbit by the earth around the sun. One year is also when the earth has gone through a full cycle of the seasons (summer winter spring etc) depending on your location on the Earth.
Is it just by coincidence that these two factors have the same time period? I mean, by the time the Earth has orbited the sun and come back to where it started, the seasons or tilting of the earth have finished their cycle at exactly that point. Is this just a coincidence or are these two factors somehow linked to each other in some way?
The middle of say, summer in a particular place is not exactly new years day, but the fact that the actual cycle lasts 365 and whatever days is my point. The season of summer starts a roughly the same time every year.
When was one year in our calender worked out and by who? Did they base it on the tilting of the Earth or the orbit? Also, given this information, what is today's definition of one year based on?
2007-09-21
23:59:55
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10 answers
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Anonymous