Which definition of the time designation BCE is correct

Simply put, BCE (Before Common Era) is a secular version of BC (before Christ). CE (Common Era) is the secular equivalent of AD (anno Domini), which means “in the year of the Lord” in Latin. January 1, 45 BCE (Before Common Era), or – if you prefer – on January 1, 45 BC (before Christ)

Explanation:

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries