Definitie & Betekenis van "(since|from) (the|) year one"

What is the origin of the idiom "since the year one" and when to use it?

The idiom "since the year one" is an idiomatic expression derived from the concept of counting years from the birth of Jesus Christ, which is commonly referred to as the year one or the start of the Common Era (CE). It is now frequently used when discussing longstanding practices, customs, or relationships that have endured for a significant period.