Which of these statements accurately explains why the common era begins with the birth of jesus of nazareth over 2000 years ago ?

Catholicism were the ones who could dictate when to start the timeline, and chose the birth of Christ as that starting point.

The period of time now described as the common era is based on Older Christian periodization that divided into a period before Jesus birth and a period after

the answer is catholics

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.