The event of the 'vulgar era' led to the beginning of the Common Era in the world.
When there was a beginning of the vulgar era, which literally means the era of ordinary people, it led to the foundation of the common era, which officially ended the use of reverse numbering of years.
Hence, the significance of the Common Era is aforementioned.
Learn more about Common Era here:
https://brainly.com/question/17250859
#SPJ1