What does BP stand for in dating systems?

Before Present

BP (Before Present): It is a dating system that refers to years before the current date.
BCE (Before Common Era): It is an alternative term used to denote years before the commonly recognized era.
CE (Common Era): Another dating system that denotes years in the current era. In the CE system, the present year is 2023.
C. (circa): The term "c." is derived from the Latin word "circa," meaning 'approximately'. It ('c') is used before a date to indicate that it is an approximate estimation rather than an exact year. It is commonly used in historical or archaeological contexts where the precise dating of an event or artifact is uncertain.