If we decided to create a new calendar based on a non religious starting point what would it be?

Question

What would be year zero and what would the current year be?

It can't be based on any event that is just American history. Also it would be nice not to have before year zero dates.

Answer 1

What a terrific question!

One proposal is the Holocene Calendar. This picks an arbitrary year in the past, 10,000 BC. This is far enough back that any known historical event has a positive year date. (It may seem like this is based on the Christian calendar, but it's not. The choice of the starting year is arbitrary, so we might as well make one that is easy to convert.)

The current year would be 12007 HE (Holocene Era).

Answer 2

Wow! That is a hard one.
The beginning of the universe would be a good starting point, if not for the fact that it would require uncomfortably large numbers, and that knowing how long ago time zero was with the required precision would be impossible.
So, the best bet would be to have a specific event that could be agreed on, like the birth of a great luminary, or something really meaningful.
One could select the first time nuclear fission was achieved (and fortunately, even if this was the test of a device with a military objective) the Trinity test on July 16 1945; or if one want something more peaceful, how about the first time man reached orbit (April 12 1961) or walked on the moon (July 20 1969)?
The problem with those is that most of history would have dates BAT (before atomic test) or BFO (before first orbital flight).
I am sure you are going to have as many different suggestions as people answering, and that none will match...

Answer 3

The Julian calendar.

It was introduced in 46 BC by Julius Caesar and came into force in 45 BC (709 ab urbe condita). It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year, known at least since Hipparchus.

Almost Identical to the present Gregorian calendar (which was chosen by the Pope to replace the Julian calendar around 1582).

Answer 4

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Answer 5

Starting on one of the soltices would make the most sense, I suppose. Either one would do.

Answer 6

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