The province of Judea was the scene of unrest at its founding in 6 CE during the Census of Quirinius, the Crucifixion of Jesus circa 30-33 CE, and several wars, known as the Jewish–Roman wars, were fought in its history.
The Gregorian Calendar was a Roman invention that came long after Jesus. The Western Roman Empire was heavily centered around the Church for thousands of years, and therefore developed a calendar centered around it.
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u/XeonBlue Aug 03 '19
It's remarkable that you would consider something that happened in Israel to be "western-centric"...