This year has been particularly ludicrous with the calendar issues. Here's a place to start if you're wondering why so many of us stick with the Jewish reckoning. It includes a legitimate reference to how the present calendar came to be and why.

https://firstcenturychristiani....ty.net/explaining-th

Explaining the Hebrew Calendar - First Century Christianity
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firstcenturychristianity.net

Explaining the Hebrew Calendar - First Century Christianity

A written article providing the key differences between our modern calendar and the Hebrew calendar.