BC stands for "Before Christ," which is a historical reference point used to mark events that occurred before the birth of Jesus Christ. This dating system was first developed by a monk named Dionysius Exiguus in the 6th century AD, who used it to calculate the date of Easter.

Some key points about BC include:

• BC refers to the time period before the birth of Jesus Christ, which is believed to have occurred around 4 BC.

• BC is often used in historical and archaeological contexts to refer to events that occurred before the Common Era (CE), which is the secular equivalent of AD (Anno Domini, or "in the year of our Lord").

• The use of BC and AD as dating systems has been criticized for their religious connotations and Eurocentrism, and alternative systems like BCE (Before the Common Era) and CE (Common Era) are now often used instead.

• Despite this, the terms BC and AD remain widely recognized and used in many academic and cultural contexts, particularly in Western countries.

Overall, BC is an important historical reference point that has been used for centuries to mark events that occurred before the birth of Jesus Christ. While it has its limitations and criticisms, it remains a widely recognized and understood dating system in many parts of the world.

B.C. stands for "Before Christ" , that means before the birth of Jesus Christ.