Dating systems bce
It is believed that the original Roman calendar was a lunar calendar that followed the phases of the Moon.This basic structure was preserved through the centuries, which is the reason why we use months today. According to tradition, Romulus, the legendary first king of Rome, oversaw an overhaul of the Roman calendar system around 738 BCE.
The Republican calendar year lasted for 355 days, which is about 10 days shorter than a tropical year, the time it takes Earth to revolve around the Sun.A calendar is convenient for regulating civil life and religious observances and for historical and scientific purposes.The word is derived from the Latin chronology, since this is concerned with reckoning time by regular divisions, or periods, and using these to date events.It was used until 45 BCE, when it was replaced by the Julian calendar.
The Republican calendar was derived from a line of older calendar systems whose exact design is largely unknown.This meant that some of the month names no longer agreed with their position in the calendar.